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A104930 Primes from merging of 7 successive digits in decimal expansion of (Pi^2). 1
4010893, 4490999, 3699407, 6264133, 9205243, 1976609, 7808693, 9666571, 6571519, 3526177, 5920483, 9818873, 7626667, 6711043, 8715041, 3659527, 5952763, 2763577, 9547249, 6475277, 2206669, 7889291, 4432457, 5617253 (list; graph; refs; listen; history; text; internal format)
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: A290123 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

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Last modified October 21 02:29 EDT 2021. Contains 348141 sequences. (Running on oeis4.)