A104920 Primes from merging of 6 successive digits in decimal expansion of Catalan's constant.

417721, 149323, 107741, 774149, 741493, 428167, 167213, 498119, 630197, 762547, 935651, 988033, 159473, 202877, 190387, 872747, 878659, 388259, 882599, 150881, 248201, 883807, 787337, 477511, 599713, 532307, 653357, 206803, 823573, 423191

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Greg Fee, Decimal Expansion of Catalan's Constant done to 50000 digits, Miscellaneous Mathematical Constants, edited by Simon Plouffe, Gutenberg Project.

Eric Weisstein's World of Mathematics, Catalan's Constant

Mathematica

Select[FromDigits/@Partition[RealDigits[Catalan, 10, 800][[1]], 6, 1], PrimeQ[#]&&#>99999&] (* Vincenzo Librandi, Apr 22 2013 *)

Crossrefs

Cf. A006752 (Catalan's constant).

Cf. A104916, A104917, A104918, A104919, A104921, A104922, A104923.

Sequence in context: A183591 A184770 A236909 * A151838 A259404 A116936

Adjacent sequences: A104917 A104918 A104919 * A104921 A104922 A104923

Keyword

nonn,base

Author

Andrew G. West (WestA(AT)wlu.edu), Mar 29 2005

Extensions

Changed offset from 0 to 1 by Vincenzo Librandi, Apr 22 2013

Status

approved