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 A112089 #3 Mar 01 2015 02:55:26 %S A112089 1,1,1,2,7,24 %N A112089 Erroneous version of A038119. %K A112089 dead %O A112089 0,4