A104964 Primes from merging of 8 successive digits in decimal expansion of cos(1).

86813971, 97174009, 31042061, 47744717, 83089343, 78606337, 26541731, 47179711, 32543359, 35943517, 59435177, 89259637, 57361543, 44917751, 63135707, 35707823, 23223677, 36771401, 67873067, 62024507, 84272021

Offset

1,1

Links

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

The first 15,000 digits of Cos(1) as calculated by Simon Plouffe at WorldWideSchool.org.

Mathematica

 Select[FromDigits/@Partition[RealDigits[Cos[1], 10, 600][[1]], 8, 1], IntegerLength[#] == 8&&PrimeQ[#]&] (* Vincenzo Librandi Apr 25 2013 *)

Crossrefs

Sequence in context: A185806 A115534 A138030 * A018787 A344804 A003825

Adjacent sequences: A104961 A104962 A104963 * A104965 A104966 A104967

Keyword

nonn,base

Author

Andrew G. West (WestA(AT)wlu.edu), Mar 30 2005

Extensions

Offset changed from 0 to 1 by Vincenzo Librandi, Apr 25 2013

Status

approved