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 A118418 #9 Jun 16 2016 22:17:38 %S A118418 1,1,2,4,8,9,25,36,75,103,264,298,826,1176,2333 %N A118418 Erroneous version of A045545. %K A118418 dead %O A118418 1,3