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A125780 Numbers n such that n^8 + 1, n^8 + 3, n^8 + 7 and n^8 + 9 are all prime. 3

%I #2 Mar 31 2012 10:22:00

%S 5241160,19083350,24619690,53634830,56604020

%N Numbers n such that n^8 + 1, n^8 + 3, n^8 + 7 and n^8 + 9 are all prime.

%t Do[If[(PrimeQ[x^8+1])&&(PrimeQ[x^8+3])&&(PrimeQ[x^8+7])&&(PrimeQ[x^8+9]),Print[x]],{x,1,30000000}] (*Artur Jasinski*)

%Y Cf. A125779.

%K nonn

%O 1,1

%A _Artur Jasinski_, Dec 11 2006

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Last modified July 15 22:54 EDT 2024. Contains 374334 sequences. (Running on oeis4.)