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 A301519 #19 Apr 06 2018 09:34:48
%S A301519 0,1,2,3,7,25,7143,11583
%N A301519 Numbers k such that 4*k^k + 1 is prime.
%C A301519 a(9) > 20000, if it exists. All terms correspond to certified primes. - _Giovanni Resta_, Apr 06 2018
%t A301519 Flatten[{0, Select[Range[1000], PrimeQ[4*#^# + 1] &]}] (* _Vaclav Kotesovec_, Mar 25 2018 *)
%o A301519 (PARI) for(n=0, 100, if(isprime(4*n^n+1), print1(n", ")))
%Y A301519 Cf. A110932, A160600, A301520, A301522.
%K A301519 nonn,more
%O A301519 1,3
%A A301519 _Seiichi Manyama_, Mar 23 2018
%E A301519 a(7)-a(8) from _Giovanni Resta_, Apr 06 2018