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 A253916 #10 Feb 17 2015 00:15:27 %S A253916 264,1334,4108,373323,6436371,387420507,1099511627816 %N A253916 Numbers that can be represented as both x^y + y and b^c + b + c, for some b, c, x, y > 1. %C A253916 Intersection of A099225 and A253775. %e A253916 264 is in the list since 264 = 2^8 + 8 and 264 = 4^4 + 4 + 4. %e A253916 a(2) = 1334 = 11^3 + 3 = 36^2 + 36 + 2. %Y A253916 Cf. A099225, A253775, A253914, A253917. %K A253916 nonn,hard,more %O A253916 1,1 %A A253916 _Alex Ratushnyak_, Jan 18 2015