This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A125780 #6 Oct 22 2024 16:37:09
%S A125780 5241160,19083350,24619690,53634830,56604020
%N A125780 Numbers n such that n^8 + 1, n^8 + 3, n^8 + 7 and n^8 + 9 are all prime.
%t A125780 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*)
%t A125780 Select[Range[567*10^5],AllTrue[#^8 +{1,3,7,9},PrimeQ]&] (* _Harvey P. Dale_, Oct 22 2024 *)
%Y A125780 Cf. A125779.
%K A125780 nonn
%O A125780 1,1
%A A125780 _Artur Jasinski_, Dec 11 2006