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A104920 Primes from merging of 6 successive digits in decimal expansion of Catalan's constant. 8
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified July 12 06:46 EDT 2020. Contains 335658 sequences. (Running on oeis4.)