3x+1 Class records calculation progress map
Status of the 3x+1 class record progress as of: Jul 22, 2017.
Intervals are indicated in blocks of 20,000,000,000,000 (20 E+12 or 20 trillion numbers).
Calculation of a single block takes approximately 7 days of (idle) time on 2.4 GHz processor.

All class records found so far can be viewed on the class records page.
This project can only run because of many cooperating contributors.
If you would like to contribute one or more blocks please go to the search page.
Note : the 3x+1 problem is just one of many distributed projects on the internet. 		Trajectory of 63,728,127
Progress history
May 5 2017 : All blocks up to 305,400 completed. 258 reached. One class record confirmed.
April 23 2017 : All blocks up to 286,500 completed. One more class record confirmed.
October 10 2016 : All blocks up to 280,000 completed. Delay record 2258 and two more class records confirmed.
March 27 2016 : All blocks up to 275,200 completed. Two more class records confirmed.
March 19 2016 : Possible new Delay Record (Delay 2258) found by Lutz.
February 17 2016 : All blocks up to 270,350 completed.
January 28 2016 : All blocks up to 270,300 completed. Two more class records confirmed.
December 2015 : All blocks up to 263,350 completed. Four more class records confirmed. 2100 class records known.
July 2015 : All blocks up to 245,500 completed. Five more class records confirmed.
December 2014 : All blocks up to 222,280 completed. Three more class records confirmed.
November 2014 : All blocks up to 213,800 completed. Delay record 2255 and two more class records confirmed.
May 2014 : All blocks up to 203,920 completed. Three class records confirmed.
February 2014 : All blocks up to 194,060 completed. Five class records confirmed. All class records up to 2050 known.
November 2013 : All blocks up to 184,000 completed. Three more class records confirmed
June 2013 : All blocks up to 166,700 completed. Two more class records confirmed.
April 2013 : All blocks up to 165,200 completed. One more class record confirmed.
February 2013 : All blocks up to 160,740 completed. Six more class records confirmed.
November 2012 : All blocks up to 148,800 completed. Five more class records confirmed
May 2012 : All blocks up to 132,360 completed. Five class records confirmed.
January 2012 : All blocks up to 121,500 completed. Final missing class record below 2000 found.
December 2011 : All blocks up to 120,200 completed. One class record confirmed.
October 2011 : All blocks up to 117,000 completed. Three more class record confirmed.
July 2011 : All blocks up to 107,500 completed. Delay record 2254 and three class records confirmed.
April 2011 : All blocks up to 97,080 completed. Delay Record 2091 and two other class records confirmed.
November 2010 : All blocks up to 91,880 completed. Three class records confirmed.
August 2010 : All blocks up to 90,000 completed. Four more class records confirmed.
February 2010 : All blocks up to 82,700 completed. Two class records confirmed.
June 2009 : All blocks up to 76,160 completed. The lowest missing CR (1964) and one other confirmed.
April 2009 : All blocks up to 72,520 completed, passing 256. Three class records confirmed.
February 2009 : All blocks up to 71,020 completed. One more class record confirmed.
December 2008 : All blocks up to 69,740 completed. The lowest missing CR (1951) and two more confirmed.
November 2008 : All blocks up to 67,500 completed. Class record 2000 finally confirmed.
October 2008 : All blocks up to 66,380 completed. Four more class records confirmed.
May 2008 : All blocks up to 61,160 completed. The lowest missing CR (1925) and three others confirmed.
December 2007 : All blocks up to 58,600 completed. Four class records confirmed.
April 2007 : All blocks up to 54,540 completed. Five more class records confirmed.
October 2006 : All blocks up to 50,000 completed. Delay Record 2090 and five class records confirmed.
November 2005 : All blocks up to 46,100 completed. Double of Record 2045 confirmed as Delay Record 2046.
August 2005 : All blocks up to 45,040 completed. Five class records confirmed.
May 2005 : Delay Record of 2090 found at ±46,785 E+12 by Eric
February 2005 : All blocks up to 42,060 completed. Three more class record confirmed.
November 2004 : All blocks up to 40,000 completed. Four class records confirmed.
August 2004 : All blocks up to 37,500 completed. Another four class records confirmed.
May 2004 : All blocks up to 36,120 completed. Seven class records confirmed.
January 2004 : All blocks up to 31,960 completed. Five further class records confirmed.
November 2003 : All blocks up to 29,840 completed. One more class record confirmed.
August 2003 : All blocks up to 29,240 completed. Another fifteen class records confirmed.
April 2003 : All blocks up to 23,100 completed. Delay record 2045 and seven class records confirmed.
December 2002 : All blocks up to 20,100 completed. All class records below 1900 known.
November 2002 : All blocks up to 20,000 completed. Delay record 2042 and fourteen class records confirmed.
November 2002 : Delay Record of 2045 found at ±22,702 E+12 by Kevin
July 2002 : All blocks up to 16,460 completed. Delay record 2039 and fifteen class records confirmed.
April 2002 : All blocks up to 12,720 completed. Another fourteen class records confirmed.
March 2002 : Delay Record of 2042 found at ±17,026 E+12 by Michael
February 2002 : All blocks up to 9340 completed. Two more class records confirmed.
December 2001 : Delay Record of 2039 found at ±12,770 E+12 by Billy
November 2001 : All blocks up to 9020 completed. One Delay record and ten class records confirmed.
September 2001 : All blocks up to 6800 completed. Three Delay records and fourteen class records confirmed. 
August 2001 : All blocks up to 3600 completed. Two Delay records and five class records confirmed
June 2001 : Delay Record of 1958 found at ±7579 E+12 by Kevin
May 2001 : Delay Record of 1919 found at ±6482 E+12 by Kevin
April 2001 : Delay Record of 1916 found at ±4861 E+12 by Kevin
March 2001 : Delay Record of 1903 found at ±4320 E+12 by Kevin
March 2001 : Delay Record of 1895 found at ±3586 E+12 by Eric
March 2001 : Delay Record of 1874 found at ±2978 E+12 by Kevin
February 2001 : All blocks up to 2620 completed. Three class records confirmed.
January 2001 : New Class and Delay Record of 1871 found at 2234,047405,400065.

Range 2000-20000
completed (view)		Range 20000-40000
completed (view)		Range 40000-60000
completed (view)		Range 60000-80000
completed (view)		Range 80000-100000
completed (view)
Range 100000-120000
completed (view)		Range 120000-140000
completed (view)		Range 140000-160000
completed (view)		Range 160000-180000
completed (view)		Range 180000-200000
completed (view)
Range 200000-220000
completed (view)		Range 220000-240000
completed (view)		Range 240000-260000
completed (view)		Range 260000-280000
completed (view)		Range 280000-300000
completed (view)
Not yet assigned Assigned,
not yet started		 Assigned,
in progress		 Entire interval
completed		 Interval completed
class record found
300000-20
Kevin		 300020-40
Kevin		 300040-60
Kevin		 300060-80
Kevin		 300080-00
Kevin		 300100-20
Kevin		 300120-40
Kevin		 300140-60
Kevin		 300160-80
Kevin		 300180-00
Kevin
300200-20
Kevin		 300220-40
Kevin		 300240-60
Kevin		 300260-80
Kevin		 300280-00
Kevin		 300300-20
Kevin		 300320-40
Kevin		 300340-60
Kevin		 300360-80
Kevin		 300380-00
Kevin
300400-20
Kevin		 300420-40
Kevin		 300440-60
Kevin		 300460-80
Kevin		 300480-00
Kevin		 300500-20
Kevin		 300520-40
Kevin		 300540-60
Kevin		 300560-80
Kevin		 300580-00
Kevin
300600-20
Kevin		 300620-40
Kevin		 300640-60
Kevin		 300660-80
Kevin		 300680-00
Kevin		 300700-20
Kevin		 300720-40
Kevin		 300740-60
Kevin		 300760-80
Kevin		 300780-00
Kevin
300800-20
Kevin		 300820-40
Kevin		 300840-60
Kevin		 300860-80
Kevin		 300880-00
Kevin		 300900-20
Kevin		 300920-40
Kevin		 300940-60
Kevin		 300960-80
Kevin		 300980-00
Kevin
301000-20
Kevin		 301020-40
Kevin		 301040-60
Kevin		 301060-80
Kevin		 301080-00
Kevin		 301100-20
Kevin		 301120-40
Kevin		 301140-60
Kevin		 301160-80
Kevin		 301180-00
Kevin
301200-20
Kevin		 301220-40
Kevin		 301240-60
Kevin		 301260-80
Kevin		 301280-00
Kevin		 301300-20
Kevin		 301320-40
Kevin		 301340-60
Kevin		 301360-80
Kevin		 301380-00
Kevin
301400-20
Kevin		 301420-40
Kevin		 301440-60
Kevin		 301460-80
Kevin		 301480-00
Kevin		 301500-20
Kevin		 301520-40
Kevin		 301540-60
Kevin		 301560-80
Kevin		 301580-00
Kevin
301600-20
Kevin		 301620-40
Kevin		 301640-60
Kevin		 301660-80
Kevin		 301680-00
Kevin		 301700-20
Kevin		 301720-40
Kevin		 301740-60
Kevin		 301760-80
Kevin		 301780-00
Kevin
301800-20
Kevin		 301820-40
Kevin		 301840-60
Kevin		 301860-80
Kevin		 301880-00
Kevin		 301900-20
Kevin		 301920-40
Kevin		 301940-60
Kevin		 301960-80
Kevin		 301980-00
Kevin
302000-20
Lutz		 302020-40
Lutz		 302040-60
Lutz		 302060-80
Lutz		 302080-00
Lutz		 302100-20
Lutz		 302120-40
Lutz		 302140-60
Lutz		 302160-80
Lutz		 302180-00
Lutz
302200-20
Lutz		 302220-40
Lutz		 302240-60
Lutz		 302260-80
Lutz		 302280-00
Lutz		 302300-20
Lutz		 302320-40
Lutz		 302340-60
Lutz		 302360-80
Lutz		 302380-00
Lutz
302400-20
Bob		 302420-40
Bob		 302440-60
Bob		 302460-80
Bob		 302480-00
Bob		 302500-20
Bob		 302520-40
Bob		 302540-60
Bob		 302560-80
Bob		 302580-00
Bob
302600-20
Luiz		 302620-40
Luiz		 302640-60
Luiz		 302660-80
Luiz		 302680-00
Luiz		 302700-20
Luiz		 302720-40
Luiz		 302740-60
Luiz		 302760-80
Luiz		 302780-00
Luiz
302800-20
JerryM		 302820-40
JerryM		 302840-60
JerryM		 302860-80
JerryM		 302880-00
JerryM		 302900-20
JerryM		 302920-40
JerryM		 302940-60
JerryM		 302960-80
JerryM		 302980-00
JerryM
303000-20
Kevin		 303020-40
Kevin		 303040-60
Kevin		 303060-80
Kevin		 303080-00
Kevin		 303100-20
Kevin		 303120-40
Kevin		 303140-60
Kevin		 303160-80
Kevin		 303180-00
Kevin
303200-20
Kevin		 303220-40
Kevin		 303240-60
Kevin		 303260-80
Kevin		 303280-00
Kevin		 303300-20
Kevin		 303320-40
Kevin		 303340-60
Kevin		 303360-80
Kevin		 303380-00
Kevin
303400-20
Kevin		 303420-40
Kevin		 303440-60
Kevin		 303460-80
Kevin		 303480-00
Kevin		 303500-20
Kevin		 303520-40
Kevin		 303540-60
Kevin		 303560-80
Kevin		 303580-00
Kevin
303600-20
Kevin		 303620-40
Kevin		 303640-60
Kevin		 303660-80
Kevin		 303680-00
Kevin		 303700-20
Kevin		 303720-40
Kevin		 303740-60
Kevin		 303760-80
Kevin		 303780-00
Kevin
303800-20
Kevin		 303820-40
Kevin		 303840-60
Kevin		 303860-80
Kevin		 303880-00
Kevin		 303900-20
Kevin		 303920-40
Kevin		 303940-60
Kevin		 303960-80
Kevin		 303980-00
Kevin
304000-20
Kevin		 304020-40
Kevin		 304040-60
Kevin		 304060-80
Kevin		 304080-00
Kevin		 304100-20
Kevin		 304120-40
Kevin		 304140-60
Kevin		 304160-80
Kevin		 304180-00
Kevin
304200-20
Kevin		 304220-40
Kevin		 304240-60
Kevin		 304260-80
Kevin		 304280-00
Kevin		 304300-20
Kevin		 304320-40
Kevin		 304340-60
Kevin		 304360-80
Kevin		 304380-00
Kevin
304400-20
Kevin		 304420-40
Kevin		 304440-60
Kevin		 304460-80
Kevin		 304480-00
Kevin		 304500-20
Kevin		 304520-40
Kevin		 304540-60
Kevin		 304560-80
Kevin		 304580-00
Kevin
304600-20
Kevin		 304620-40
Kevin		 304640-60
Kevin		 304660-80
Kevin		 304680-00
Kevin		 304700-20
Kevin		 304720-40
Kevin		 304740-60
Kevin		 304760-80
Kevin		 304780-00
Kevin
304800-20
Kevin		 304820-40
Kevin		 304840-60
Kevin		 304860-80
Kevin		 304880-00
Kevin		 304900-20
Kevin		 304920-40
Kevin		 304940-60
Kevin		 304960-80
Kevin		 304980-00
Kevin
305000-20
Steven		 305020-40
Steven		 305040-60
Steven		 305060-80
Steven		 305080-00
Steven		 305100-20
Steven		 305120-40
Steven		 305140-60
Steven		 305160-80
Steven		 305180-00
Steven
305200-20
Steven		 305220-40
Steven		 305240-60
Steven		 305260-80
Steven		 305280-00
Steven		 305300-20
Steven		 305320-40
Steven		 305340-60
Steven		 305360-80
Steven		 305380-00
Steven
305400-20
Tom		 305420-40
Tom		 305440-60
Tom		 305460-80
Tom		 305480-00
Tom		 305500-20
Tom		 305520-40
Tom		 305540-60
Tom		 305560-80
Tom		 305580-00
Tom
305600-20
Bob		 305620-40
Bob		 305640-60
Bob		 305660-80
Bob		 305680-00
Bob		 305700-20
Bob		 305720-40
Bob		 305740-60
Bob		 305760-80
Bob		 305780-00
Bob
305800-20
Luiz		 305820-40
Luiz		 305840-60
Luiz		 305860-80
Luiz		 305880-00
Luiz		 305900-20
Luiz		 305920-40
Luiz		 305940-60
Luiz		 305960-80
Luiz		 305980-00
Luiz
306000-20
Kevin		 306020-40
Kevin		 306040-60
Kevin		 306060-80
Kevin		 306080-00
Kevin		 306100-20
Kevin		 306120-40
Kevin		 306140-60
Kevin		 306160-80
Kevin		 306180-00
Kevin
306200-20
Kevin		 306220-40
Kevin		 306240-60
Kevin		 306260-80
Kevin		 306280-00
Kevin		 306300-20
Kevin		 306320-40
Kevin		 306340-60
Kevin		 306360-80
Kevin		 306380-00
Kevin
306400-20
Kevin		 306420-40
Kevin		 306440-60
Kevin		 306460-80
Kevin		 306480-00
Kevin		 306500-20
Kevin		 306520-40
Kevin		 306540-60
Kevin		 306560-80
Kevin		 306580-00
Kevin
306600-20
Kevin		 306620-40
Kevin		 306640-60
Kevin		 306660-80
Kevin		 306680-00
Kevin		 306700-20
Kevin		 306720-40
Kevin		 306740-60
Kevin		 306760-80
Kevin		 306780-00
Kevin
306800-20
Kevin		 306820-40
Kevin		 306840-60
Kevin		 306860-80
Kevin		 306880-00
Kevin		 306900-20
Kevin		 306920-40
Kevin		 306940-60
Kevin		 306960-80
Kevin		 306980-00
Kevin
307000-20
Kevin		 307020-40
Kevin		 307040-60
Kevin		 307060-80
Kevin		 307080-00
Kevin		 307100-20
Kevin		 307120-40
Kevin		 307140-60
Kevin		 307160-80
Kevin		 307180-00
Kevin
307200-20
Kevin		 307220-40
Kevin		 307240-60
Kevin		 307260-80
Kevin		 307280-00
Kevin		 307300-20
Kevin		 307320-40
Kevin		 307340-60
Kevin		 307360-80
Kevin		 307380-00
Kevin
307400-20
Kevin		 307420-40
Kevin		 307440-60
Kevin		 307460-80
Kevin		 307480-00
Kevin		 307500-20
Kevin		 307520-40
Kevin		 307540-60
Kevin		 307560-80
Kevin		 307580-00
Kevin
307600-20
Kevin		 307620-40
Kevin		 307640-60
Kevin		 307660-80
Kevin		 307680-00
Kevin		 307700-20
Kevin		 307720-40
Kevin		 307740-60
Kevin		 307760-80
Kevin		 307780-00
Kevin
307800-20
Kevin		 307820-40
Kevin		 307840-60
Kevin		 307860-80
Kevin		 307880-00
Kevin		 307900-20
Kevin		 307920-40
Kevin		 307940-60
Kevin		 307960-80
Kevin		 307980-00
Kevin
308000-20
Kevin		 308020-40
Kevin		 308040-60
Kevin		 308060-80
Kevin		 308080-00
Kevin		 308100-20
Kevin		 308120-40
Kevin		 308140-60
Kevin		 308160-80
Kevin		 308180-00
Kevin
308200-20
Kevin		 308220-40
Kevin		 308240-60
Kevin		 308260-80
Kevin		 308280-00
Kevin		 308300-20
Kevin		 308320-40
Kevin		 308340-60
Kevin		 308360-80
Kevin		 308380-00
Kevin
308400-20
Kevin		 308420-40
Kevin		 308440-60
Kevin		 308460-80
Kevin		 308480-00
Kevin		 308500-20
Kevin		 308520-40
Kevin		 308540-60
Kevin		 308560-80
Kevin		 308580-00
Kevin
308600-20
Kevin		 308620-40
Kevin		 308640-60
Kevin		 308660-80
Kevin		 308680-00
Kevin		 308700-20
Kevin		 308720-40
Kevin		 308740-60
Kevin		 308760-80
Kevin		 308780-00
Kevin
308800-20
Kevin		 308820-40
Kevin		 308840-60
Kevin		 308860-80
Kevin		 308880-00
Kevin		 308900-20
Kevin		 308920-40
Kevin		 308940-60
Kevin		 308960-80
Kevin		 308980-00
Kevin
309000-20
Lutz		 309020-40
Lutz		 309040-60
Lutz		 309060-80
Lutz		 309080-00
Lutz		 309100-20
Lutz		 309120-40
Lutz		 309140-60
Lutz		 309160-80
Lutz		 309180-00
Lutz
309200-20
Lutz		 309220-40
Lutz		 309240-60
Lutz		 309260-80
Lutz		 309280-00
Lutz		 309300-20
Lutz		 309320-40
Lutz		 309340-60
Lutz		 309360-80
Lutz		 309380-00
Lutz
309400-20
Sergei		 309420-40
Sergei		 309440-60
Sergei		 309460-80
Sergei		 309480-00
Sergei		 309500-20
Bob		 309520-40
Bob		 309540-60
Bob		 309560-80
Bob		 309580-00
Bob
309600-20
Bob		 309620-40
Bob		 309640-60
Bob		 309660-80
Bob		 309680-00
Bob		 309700-20
Steven		 309720-40
Steven		 309740-60
Steven		 309760-80
Steven		 309780-00
Steven
309800-20
Steven		 309820-40
Steven		 309840-60
Steven		 309860-80
Steven		 309880-00
Steven		 309900-20
Steven		 309920-40
Steven		 309940-60
Steven		 309960-80
Steven		 309980-00
Steven
310000-20
Steven		 310020-40
Steven		 310040-60
Steven		 310060-80
Steven		 310080-00
Steven		 310100-20
Lutz		 310120-40
Lutz		 310140-60
Lutz		 310160-80
Lutz		 310180-00
Lutz
310200-20
Lutz		 310220-40
Lutz		 310240-60
Lutz		 310260-80
Lutz		 310280-00
Lutz		 310300-20
Lutz		 310320-40
Lutz		 310340-60
Lutz		 310360-80
Lutz		 310380-00
Lutz
310400-20
Lutz		 310420-40
Lutz		 310440-60
Lutz		 310460-80
Lutz		 310480-00
Lutz		 310500-20
Luiz		 310520-40
Luiz		 310540-60
Luiz		 310560-80
Luiz		 310580-00
Luiz
310600-20
Luiz		 310620-40
Luiz		 310640-60
Luiz		 310660-80
Luiz		 310680-00
Luiz		 310700-20
RyanH		 310720-40
RyanH		 310740-60
RyanH		 310760-80
RyanH		 310780-00
RyanH
310800-20
Joonatan P		 310820-40
Joonatan P		 310840-60
Joonatan P		 310860-80
Joonatan P		 310880-00
Joonatan P		 310900-20
RyanH		 310920-40
RyanH		 310940-60
RyanH		 310960-80
RyanH		 310980-00
RyanH
311000-20
Kevin		 311020-40
Kevin		 311040-60
Kevin		 311060-80
Kevin		 311080-00
Kevin		 311100-20
Kevin		 311120-40
Kevin		 311140-60
Kevin		 311160-80
Kevin		 311180-00
Kevin
311200-20
Kevin		 311220-40
Kevin		 311240-60
Kevin		 311260-80
Kevin		 311280-00
Kevin		 311300-20
Kevin		 311320-40
Kevin		 311340-60
Kevin		 311360-80
Kevin		 311380-00
Kevin
311400-20
Kevin		 311420-40
Kevin		 311440-60
Kevin		 311460-80
Kevin		 311480-00
Kevin		 311500-20
Kevin		 311520-40
Kevin		 311540-60
Kevin		 311560-80
Kevin		 311580-00
Kevin
311600-20
Kevin		 311620-40
Kevin		 311640-60
Kevin		 311660-80
Kevin		 311680-00
Kevin		 311700-20
Kevin		 311720-40
Kevin		 311740-60
Kevin		 311760-80
Kevin		 311780-00
Kevin
311800-20
Kevin		 311820-40
Kevin		 311840-60
Kevin		 311860-80
Kevin		 311880-00
Kevin		 311900-20
Kevin		 311920-40
Kevin		 311940-60
Kevin		 311960-80
Kevin		 311980-00
Kevin
312000-20
Kevin		 312020-40
Kevin		 312040-60
Kevin		 312060-80
Kevin		 312080-00
Kevin		 312100-20
Kevin		 312120-40
Kevin		 312140-60
Kevin		 312160-80
Kevin		 312180-00
Kevin
312200-20
Kevin		 312220-40
Kevin		 312240-60
Kevin		 312260-80
Kevin		 312280-00
Kevin		 312300-20
Kevin		 312320-40
Kevin		 312340-60
Kevin		 312360-80
Kevin		 312380-00
Kevin
312400-20
Kevin		 312420-40
Kevin		 312440-60
Kevin		 312460-80
Kevin		 312480-00
Kevin		 312500-20
Kevin		 312520-40
Kevin		 312540-60
Kevin		 312560-80
Kevin		 312580-00
Kevin
312600-20
Kevin		 312620-40
Kevin		 312640-60
Kevin		 312660-80
Kevin		 312680-00
Kevin		 312700-20
Kevin		 312720-40
Kevin		 312740-60
Kevin		 312760-80
Kevin		 312780-00
Kevin
312800-20
Kevin		 312820-40
Kevin		 312840-60
Kevin		 312860-80
Kevin		 312880-00
Kevin		 312900-20
Kevin		 312920-40
Kevin		 312940-60
Kevin		 312960-80
Kevin		 312980-00
Kevin
313000-20
Kevin		 313020-40
Kevin		 313040-60
Kevin		 313060-80
Kevin		 313080-00
Kevin		 313100-20
Kevin		 313120-40
Kevin		 313140-60
Kevin		 313160-80
Kevin		 313180-00
Kevin
313200-20
Kevin		 313220-40
Kevin		 313240-60
Kevin		 313260-80
Kevin		 313280-00
Kevin		 313300-20
Kevin		 313320-40
Kevin		 313340-60
Kevin		 313360-80
Kevin		 313380-00
Kevin
313400-20
Kevin		 313420-40
Kevin		 313440-60
Kevin		 313460-80
Kevin		 313480-00
Kevin		 313500-20
Kevin		 313520-40
Kevin		 313540-60
Kevin		 313560-80
Kevin		 313580-00
Kevin
313600-20
Kevin		 313620-40
Kevin		 313640-60
Kevin		 313660-80
Kevin		 313680-00
Kevin		 313700-20
Kevin		 313720-40
Kevin		 313740-60
Kevin		 313760-80
Kevin		 313780-00
Kevin
313800-20
Kevin		 313820-40
Kevin		 313840-60
Kevin		 313860-80
Kevin		 313880-00
Kevin		 313900-20
Kevin		 313920-40
Kevin		 313940-60
Kevin		 313960-80
Kevin		 313980-00
Kevin
314000-20
Bob		 314020-40
Bob		 314040-60
Bob		 314060-80
Bob		 314080-00
Bob		 314100-20
Bob		 314120-40
Bob		 314140-60
Bob		 314160-80
Bob		 314180-00
Bob
314200-20
Steven		 314220-40
Steven		 314240-60
Steven		 314260-80
Steven		 314280-00
Steven		 314300-20
Steven		 314320-40
Steven		 314340-60
Steven		 314360-80
Steven		 314380-00
Steven
314400-20
Steven		 314420-40
Steven		 314440-60
Steven		 314460-80
Steven		 314480-00
Steven		 314500-20
Steven		 314520-40
Steven		 314540-60
Steven		 314560-80
Steven		 314580-00
Steven
314600-20
JerryM		 314620-40
JerryM		 314640-60
JerryM		 314660-80
JerryM		 314680-00
JerryM		 314700-20
Luiz		 314720-40
Luiz		 314740-60
Luiz		 314760-80
Luiz		 314780-00
Luiz
314800-20
Luiz		 314820-40
Luiz		 314840-60
Luiz		 314860-80
Luiz		 314880-00
Luiz		 314900-20
Eric		 314920-40
Eric		 314940-60
Eric		 314960-80
Eric		 314980-00
Eric
315000-20
Lutz		 315020-40
Lutz		 315040-60
Lutz		 315060-80
Lutz		 315080-00
Lutz		 315100-20
Lutz		 315120-40
Lutz		 315140-60
Lutz		 315160-80
Lutz		 315180-00
Lutz
315200-20
Lutz		 315220-40
Lutz		 315240-60
Lutz		 315260-80
Lutz		 315280-00
Lutz		 315300-20
Lutz		 315320-40
Lutz		 315340-60
Lutz		 315360-80
Lutz		 315380-00
Lutz
315400-20
Bob		 315420-40
Bob		 315440-60
Bob		 315460-80
Bob		 315480-00
Bob		 315500-20
Bob		 315520-40
Bob		 315540-60
Bob		 315560-80
Bob		 315580-00
Bob
315600-20
Luiz		 315620-40
Luiz		 315640-60
Luiz		 315660-80
Luiz		 315680-00
Luiz		 315700-20
Luiz		 315720-40
Luiz		 315740-60
Luiz		 315760-80
Luiz		 315780-00
Luiz
315800-20
Eric		 315820-40
Eric		 315840-60
Eric		 315860-80
Eric		 315880-00
Eric		 315900-20
JerryM		 315920-40
JerryM		 315940-60
JerryM		 315960-80
JerryM		 315980-00
JerryM
316000-20
Wenjie		 316020-40
Wenjie		 316040-60
Wenjie		 316060-80
Wenjie		 316080-00
Wenjie		 316100-20
Wenjie		 316120-40
Wenjie		 316140-60
Wenjie		 316160-80
Wenjie		 316180-00
Wenjie
316200-20
Wenjie		 316220-40
Wenjie		 316240-60
Wenjie		 316260-80
Wenjie		 316280-00
Wenjie		 316300-20
Wenjie		 316320-40
Wenjie		 316340-60
Wenjie		 316360-80
Wenjie		 316380-00
Wenjie
316400-20
Wenjie		 316420-40
Wenjie		 316440-60
Wenjie		 316460-80
Wenjie		 316480-00
Wenjie		 316500-20
Wenjie		 316520-40
Wenjie		 316540-60
Wenjie		 316560-80
Wenjie		 316580-00
Wenjie
316600-20
Wenjie		 316620-40
Wenjie		 316640-60
Wenjie		 316660-80
Wenjie		 316680-00
Wenjie		 316700-20
Wenjie		 316720-40
Wenjie		 316740-60
Wenjie		 316760-80
Wenjie		 316780-00
Wenjie
316800-20
Wenjie		 316820-40
Wenjie		 316840-60
Wenjie		 316860-80
Wenjie		 316880-00
Wenjie		 316900-20
Wenjie		 316920-40
Wenjie		 316940-60
Wenjie		 316960-80
Wenjie		 316980-00
Wenjie
317000-20
Steven		 317020-40
Steven		 317040-60
Steven		 317060-80
Steven		 317080-00
Steven		 317100-20
Steven		 317120-40
Steven		 317140-60
Steven		 317160-80
Steven		 317180-00
Steven
317200-20
Steven		 317220-40
Steven		 317240-60
Steven		 317260-80
Steven		 317280-00
Steven		 317300-20
Steven		 317320-40
Steven		 317340-60
Steven		 317360-80
Steven		 317380-00
Steven
317400-20
Eric		 317420-40
Eric		 317440-60
Eric		 317460-80
Eric		 317480-00
Eric		 317500-20
Bob		 317520-40
Bob		 317540-60
Bob		 317560-80
Bob		 317580-00
Bob
317600-20
Bob		 317620-40
Bob		 317640-60
Bob		 317660-80
Bob		 317680-00
Bob		 317700-20
Eric		 317720-40
Eric		 317740-60
Eric		 317760-80
Eric		 317780-00
Eric
317800-20
Lutz		 317820-40
Lutz		 317840-60
Lutz		 317860-80
Lutz		 317880-00
Lutz		 317900-20
Lutz		 317920-40
Lutz		 317940-60
Lutz		 317960-80
Lutz		 317980-00
Lutz
318000-20
Kevin		 318020-40
Kevin		 318040-60
Kevin		 318060-80
Kevin		 318080-00
Kevin		 318100-20
Kevin		 318120-40
Kevin		 318140-60
Kevin		 318160-80
Kevin		 318180-00
Kevin
318200-20
Kevin		 318220-40
Kevin		 318240-60
Kevin		 318260-80
Kevin		 318280-00
Kevin		 318300-20
Kevin		 318320-40
Kevin		 318340-60
Kevin		 318360-80
Kevin		 318380-00
Kevin
318400-20
Kevin		 318420-40
Kevin		 318440-60
Kevin		 318460-80
Kevin		 318480-00
Kevin		 318500-20
Kevin		 318520-40
Kevin		 318540-60
Kevin		 318560-80
Kevin		 318580-00
Kevin
318600-20
Kevin		 318620-40
Kevin		 318640-60
Kevin		 318660-80
Kevin		 318680-00
Kevin		 318700-20
Kevin		 318720-40
Kevin		 318740-60
Kevin		 318760-80
Kevin		 318780-00
Kevin
318800-20
Kevin		 318820-40
Kevin		 318840-60
Kevin		 318860-80
Kevin		 318880-00
Kevin		 318900-20
Kevin		 318920-40
Kevin		 318940-60
Kevin		 318960-80
Kevin		 318980-00
Kevin
319000-20
Kevin		 319020-40
Kevin		 319040-60
Kevin		 319060-80
Kevin		 319080-00
Kevin		 319100-20
Kevin		 319120-40
Kevin		 319140-60
Kevin		 319160-80
Kevin		 319180-00
Kevin
319200-20
Kevin		 319220-40
Kevin		 319240-60
Kevin		 319260-80
Kevin		 319280-00
Kevin		 319300-20
Kevin		 319320-40
Kevin		 319340-60
Kevin		 319360-80
Kevin		 319380-00
Kevin
319400-20
Kevin		 319420-40
Kevin		 319440-60
Kevin		 319460-80
Kevin		 319480-00
Kevin		 319500-20
Kevin		 319520-40
Kevin		 319540-60
Kevin		 319560-80
Kevin		 319580-00
Kevin
319600-20
Kevin		 319620-40
Kevin		 319640-60
Kevin		 319660-80
Kevin		 319680-00
Kevin		 319700-20
Kevin		 319720-40
Kevin		 319740-60
Kevin		 319760-80
Kevin		 319780-00
Kevin
319800-20
Kevin		 319820-40
Kevin		 319840-60
Kevin		 319860-80
Kevin		 319880-00
Kevin		 319900-20
Kevin		 319920-40
Kevin		 319940-60
Kevin		 319960-80
Kevin		 319980-00
Kevin
320000-20
Kevin		 320020-40
Kevin		 320040-60
Kevin		 320060-80
Kevin		 320080-00
Kevin		 320100-20
Kevin		 320120-40
Kevin		 320140-60
Kevin		 320160-80
Kevin		 320180-00
Kevin
320200-20
Kevin		 320220-40
Kevin		 320240-60
Kevin		 320260-80
Kevin		 320280-00
Kevin		 320300-20
Kevin		 320320-40
Kevin		 320340-60
Kevin		 320360-80
Kevin		 320380-00
Kevin
320400-20
Kevin		 320420-40
Kevin		 320440-60
Kevin		 320460-80
Kevin		 320480-00
Kevin		 320500-20
Kevin		 320520-40
Kevin		 320540-60
Kevin		 320560-80
Kevin		 320580-00
Kevin
320600-20
Kevin		 320620-40
Kevin		 320640-60
Kevin		 320660-80
Kevin		 320680-00
Kevin		 320700-20
Kevin		 320720-40
Kevin		 320740-60
Kevin		 320760-80
Kevin		 320780-00
Kevin
320800-20
Kevin		 320820-40
Kevin		 320840-60
Kevin		 320860-80
Kevin		 320880-00
Kevin		 320900-20
Kevin		 320920-40
Kevin		 320940-60
Kevin		 320960-80
Kevin		 320980-00
Kevin
321000-20
Wenjie		 321020-40
Wenjie		 321040-60
Wenjie		 321060-80
Wenjie		 321080-00
Wenjie		 321100-20
Wenjie		 321120-40
Wenjie		 321140-60
Wenjie		 321160-80
Wenjie		 321180-00
Wenjie
321200-20
Wenjie		 321220-40
Wenjie		 321240-60
Wenjie		 321260-80
Wenjie		 321280-00
Wenjie		 321300-20
Wenjie		 321320-40
Wenjie		 321340-60
Wenjie		 321360-80
Wenjie		 321380-00
Wenjie
321400-20
Wenjie		 321420-40
Wenjie		 321440-60
Wenjie		 321460-80
Wenjie		 321480-00
Wenjie		 321500-20
Wenjie		 321520-40
Wenjie		 321540-60
Wenjie		 321560-80
Wenjie		 321580-00
Wenjie
321600-20
Wenjie		 321620-40
Wenjie		 321640-60
Wenjie		 321660-80
Wenjie		 321680-00
Wenjie		 321700-20
Wenjie		 321720-40
Wenjie		 321740-60
Wenjie		 321760-80
Wenjie		 321780-00
Wenjie
321800-20
Wenjie		 321820-40
Wenjie		 321840-60
Wenjie		 321860-80
Wenjie		 321880-00
Wenjie		 321900-20
Wenjie		 321920-40
Wenjie		 321940-60
Wenjie		 321960-80
Wenjie		 321980-00
Wenjie
322000-20
Lutz		 322020-40
Lutz		 322040-60
Lutz		 322060-80
Lutz		 322080-00
Lutz		 322100-20
Lutz		 322120-40
Lutz		 322140-60
Lutz		 322160-80
Lutz		 322180-00
Lutz
322200-20
RichardK		 322220-40
RichardK		 322240-60
RichardK		 322260-80
RichardK		 322280-00
RichardK		 322300-20
Eric		 322320-40
Eric		 322340-60
Eric		 322360-80
Eric		 322380-00
Eric
322400-20
Luiz		 322420-40
Luiz		 322440-60
Luiz		 322460-80
Luiz		 322480-00
Luiz		 322500-20
Luiz		 322520-40
Luiz		 322540-60
Luiz		 322560-80
Luiz		 322580-00
Luiz
322600-20
JerryM		 322620-40
JerryM		 322640-60
JerryM		 322660-80
JerryM		 322680-00
JerryM		 322700-20
 322720-40
 322740-60
 322760-80
 322780-00
322800-20
 322820-40
 322840-60
 322860-80
 322880-00
 322900-20
 322920-40
 322940-60
 322960-80
 322980-00
Contributions by
EricEric Roosendaal, Netherlands (author) LutzLutz Nebe, Germany
KevinKevin Hebb, Alberta, Canada BobBob Coffman, USA
WenjieFang Wenjie, China StevenSteven Cuthbert, England
LuizLuiz Antonio Souza, Brazil TomTom Leong, USA
JerryMJerry Metzger, USA SergeiSergei S, Russia
RyanHRyan Harder Joonatan PJoonatan P, Finland
RichardKRichard Kapek, Austria   

Back to the general 3x+1 page.