A105005 Primes from merging of 9 successive digits in decimal expansion of exp(2).

315570551, 782252257, 773753161, 123884603, 447839221, 213398077, 122895607, 581820269, 552348757, 146799281, 751532081, 913558771, 258833999, 987122813, 263792951, 295182227, 784294843, 135287693, 876938669, 938669857, 996014807

Offset

1,1

Links

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

The first 5,000 digits of exp(2) as calculated by Simon Plouffe at WorldWideSchool.org.

Eric Weisstein, Exponential Functions

Mathematica

 Select[FromDigits/@Partition[RealDigits[Exp[2], 10, 900][[1]], 9, 1], #>99999999&&PrimeQ[#]&] (* Vincenzo Librandi, Apr 26 2013 *)

Crossrefs

Sequence in context: A189055 A221985 A219784 * A157789 A331445 A331446

Adjacent sequences: A105002 A105003 A105004 * A105006 A105007 A105008

Keyword

nonn,base

Author

Andrew G. West (WestA(AT)wlu.edu), Mar 31 2005

Extensions

Changed offset from 0 to 1 by Vincenzo Librandi, Apr 26 2013

Status

approved