[seqfan] OEIS duplicate hunt

Richard Mathar mathar at strw.leidenuniv.nl
Sat May 2 15:06:24 CEST 2009


Are the following pairs of sequences related?

http://research.att.com/~njas/sequences/?q=id:A160058|id:A137869
53,157,173,211,251,257,263,293,
53,89,157,173,211,251,257,263,293,331,337,359,367,373,389,409,

http://research.att.com/~njas/sequences/?q=id:A160053|id:A140612
0,1,4,8,9,16,17,25,36,40,49,52,64,72,73,80,81,89,97,100,116,121,136,144,145,148,169,180,193,196,225,232,233,241,244,256,260,288,289,292,305,313,324,337,360,361,369,388,400,404,409,424,441,449,457,481,484,
1,4,8,9,16,17,25,36,40,49,52,64,72,73,80,81,89,97,100,116,121,136,144,145,148,169,180,193,196,225,232,233,241,244,256,260,288,289,292,305,313,324,337,360,361,369,388,400,404,409,424,441,449,457,

http://research.att.com/~njas/sequences/?q=id:A160049|id:A096620
1,1,1,3,6,5,10,35,140,126,1260,1155,13860,12870,12012,45045,360360,340340,2042040,1939938,369512,117572,2586584,7436429,178474296,171609900,1487285800,1434168450,40156716600,38818159380,1164544781400,
1,1,1,3,6,5,10,35,140,126,1260,1155,13860,12870,12012,45045,360360,340340,2042040,1939938,369512,117572,2586584,7436429,178474296,171609900,1487285800,1434168450,40156716600,38818159380,

http://research.att.com/~njas/sequences/?q=id:A160049|id:A093419
1,1,1,3,6,5,10,35,140,126,1260,1155,13860,12870,12012,45045,360360,340340,2042040,1939938,369512,117572,2586584,7436429,178474296,171609900,1487285800,1434168450,40156716600,38818159380,1164544781400,
1,1,3,6,5,10,35,140,126,1260,1155,13860,12870,12012,45045,360360,340340,2042040,1939938,369512,117572,2586584,7436429,178474296,171609900,1487285800,1434168450,40156716600,38818159380,1164544781400,

http://research.att.com/~njas/sequences/?q=id:A159966|id:A092486
0,3,2,1,4,7,6,5,8,11,10,9,12,15,14,13,16,19,18,17,20,23,22,21,24,27,26,25,28,31,30,29,32,35,34,33,36,39,38,37,40,43,42,41,44,47,46,45,48,51,50,49,52,55,54,53,56,59,58,57,60,63,62,61,64,67,66,65,68,71,70,69,72,
3,2,1,4,7,6,5,8,11,10,9,12,15,14,13,16,19,18,17,20,23,22,21,24,27,26,25,28,31,30,29,32,35,34,33,36,39,38,37,40,43,42,41,44,47,46,45,48,51,50,49,52,55,54,53,56,59,58,57,60,63,62,61,64,67,66,65,68,71,70,69,72,

(for more puzzles of this kind
see http://www.strw.leidenuniv.nl/~mathar/progs/oeisDupl )

Richard




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