%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
|