A105380 Primes from merging of 7 successive digits in decimal expansion of Zeta(2) or (PI^2)/6.

2643647, 2890061, 9006197, 7587053, 3040043, 8962337, 6233719, 3086627, 2768317, 1733309, 3309367, 6260509, 8115587, 9198407, 4558769, 5876963, 2008051, 5250683, 8338763, 2765879, 4472197, 4773409, 7734091, 9278263

Offset

1,1

Links

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

The first 10,000 digits of Zeta(2) as calculated by Simon Plouffe at WorldWideSchool.org.

Eric Weisstein's World of Mathematics, Riemann Zeta Functions.

Mathematica

Select[FromDigits /@ Partition[RealDigits[Zeta[2], 10, 31700][[1]], 7, 1], # > 999999 && PrimeQ[#] &] (* Vincenzo Librandi, Apr 28 2013 *)

Crossrefs

Cf. A013661.

Sequence in context: A162026 A229799 A196496 * A250911 A157840 A063413

Adjacent sequences: A105377 A105378 A105379 * A105381 A105382 A105383

Keyword

nonn,base

Author

Andrew G. West (WestA(AT)wlu.edu), Apr 02 2005

Extensions

Changed offset from 0 to 1 by Vincenzo Librandi, Apr 28 2013

Status

approved