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 A096724 #2 May 19 2006 03:00:00 %S A096724 2,5,13,41,1093,797161,21523361,926510094425921 %N A096724 Duplicate of A088553. %K A096724 dead %O A096724 1,1