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 A238663 #4 Mar 02 2014 12:05:24 %S A238663 3,31,59,163,487,1019,433,2617,1831,2383,16189,2711,3407,18541,2693, %T A238663 21613,51517,6323,37313,32401,65543,13337,72661,95603,19571,484369, %U A238663 28463,31817,598891,59627,405599,217117,93257,191021,497257,381569,74567,1120087,263621 %N A238663 n-th prime p such that (p+n)^2+n is prime but (p+j)^2+j is not prime for all 0<j<n. %Y A238663 Main diagonal of A238086. %K A238663 nonn %O A238663 1,1 %A A238663 _Alois P. Heinz_, Mar 02 2014