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A104963 Primes from merging of 7 successive digits in decimal expansion of cos(1). 1
3058681, 7174009, 6074429, 9766037, 4206179, 7922227, 7744717, 4517951, 9343571, 9245513, 3932543, 5943517, 3757361, 4327549, 1754491, 7511513, 2227301, 3135707, 2322367, 2236771, 7873067, 4067587, 5111563, 7145689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

The first 15,000 digits of Cos(1) as calculated by Simon Plouffe at WorldWideSchool.org.

MATHEMATICA

Select[FromDigits /@ Partition[RealDigits[Cos[1], 10, 600][[1]], 7, 1], IntegerLength[#] == 7 && PrimeQ[#] &] (* Vincenzo Librandi, Apr 25 2013 *)

CROSSREFS

Sequence in context: A281447 A246249 A183696 * A190462 A282746 A212854

Adjacent sequences:  A104960 A104961 A104962 * A104964 A104965 A104966

KEYWORD

nonn,base

AUTHOR

Andrew G. West (WestA(AT)wlu.edu), Mar 30 2005

EXTENSIONS

Changed offset from 0 to 1 by Vincenzo Librandi, Apr 24 2013

STATUS

approved

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Last modified April 13 01:36 EDT 2021. Contains 342934 sequences. (Running on oeis4.)