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 A130536 #14 Sep 16 2018 04:39:06 %S A130536 3,5,7,41,11,13,113,17,19,2211377674535255285545615254209921,23,313, %T A130536 66977,29,31,149057,613,37,761,41,43,1013,47,1201,1301,53,1146097 %N A130536 Prime numbers arising from A057856. %C A130536 Conjecture: For all pairs of relative prime numbers (x, y) there exists at least one number n = 2^m and one prime number p such that p = x^n + y^n. This sequence shows one case of this conjecture where y = x + 1. %e A130536 a(10)=2211377674535255285545615254209921 because A057856(10)=32 and 2211377674535255285545615254209921 = 10^32 + 11^32 = 100000000000000000000000000000000 + 2111377674535255285545615254209921. %o A130536 (PARI) a(n) = my(k=1); while (!isprime(p=(n+1)^k + n^k), k++); p; \\ _Michel Marcus_, Sep 16 2018 %Y A130536 Cf. A057856. %K A130536 nonn,hard %O A130536 1,1 %A A130536 _Tomas Xordan_, Jun 02 2007