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 A302089 #9 Apr 01 2018 10:44:04 %S A302089 139,15629,1937102449 %N A302089 Primes of form 5*k^k + 4. %C A302089 The next term is too large to include. %F A302089 a(n) = 5*A302088(n)^A302088(n) + 4. %o A302089 (PARI) lista(nn) = forstep(n=1, nn, 2, if(ispseudoprime(p=5*n^n+4), print1(p, ", "))); \\ _Altug Alkan_, Apr 01 2018 %Y A302089 Primes of form b*k^k + b - 1: A216148 (b=2), A301811 (b=3), A301808 (b=4), this sequence (b=5), A302091 (b=6). %Y A302089 Cf. A302088. %K A302089 nonn %O A302089 1,1 %A A302089 _Seiichi Manyama_, Apr 01 2018