A105003 Primes from merging of 7 successive digits in decimal expansion of exp(2).

7500781, 8031557, 1217947, 2179477, 1794773, 4788661, 7812733, 3913309, 6254141, 9928129, 3188807, 3301019, 3378997, 8997407, 9740729, 7407299, 9600953, 1532081, 2368469, 6846947, 4793029, 4456831, 6831239, 9996461

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, 600][[1]], 7, 1], #>999999&&PrimeQ[#]&] (* Vincenzo Librandi, Apr 26 2013 *)

Crossrefs

Sequence in context: A172547 A172599 A172705 * A270993 A213462 A102334

Adjacent sequences: A105000 A105001 A105002 * A105004 A105005 A105006

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