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A104931 Primes from merging of 8 successive digits in decimal expansion of (Pi^2). 1
61883449, 83449099, 51135313, 19205243, 43001773, 34812203, 76779851, 76609903, 12328403, 26058169, 92048309, 73270033, 27003307, 62666711, 11043589, 15041003, 32578853, 65952763, 37922683, 41250269, 25026973 (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]], 8, 1], #>10000000&&PrimeQ[#]&] (* Vincenzo Librandi, Apr 24 2013 *)

CROSSREFS

Sequence in context: A022218 A059001 A059003 * A210298 A204883 A096559

Adjacent sequences:  A104928 A104929 A104930 * A104932 A104933 A104934

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 24 2013

STATUS

approved

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Last modified April 14 22:47 EDT 2021. Contains 342971 sequences. (Running on oeis4.)