A104930 Primes from merging of 7 successive digits in decimal expansion of (Pi^2).

4010893, 4490999, 3699407, 6264133, 9205243, 1976609, 7808693, 9666571, 6571519, 3526177, 5920483, 9818873, 7626667, 6711043, 8715041, 3659527, 5952763, 2763577, 9547249, 6475277, 2206669, 7889291, 4432457, 5617253

Offset

1,1

Links

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

Pi as defined at MathWorld.com

Expansion of Pi^2 done to 10,000 digits as part of Project Gutenberg.

Mathematica

Select[FromDigits/@Partition[RealDigits[Pi^2, 10, 500][[1]], 7, 1], #>1000000&&PrimeQ[#]&] (* Vincenzo Librandi, Apr 23 2013 *)

Crossrefs

Sequence in context: A234798 A146946 A109207 * A251614 A187599 A246470

Adjacent sequences: A104927 A104928 A104929 * A104931 A104932 A104933

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 23 2013

Status

approved