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 A088525 #3 May 11 2007 03:00:00 %S A088525 8,12,24,36,60,84,120,144,204,216,276,300,360,384,396,456,480,540,564 %N A088525 Duplicate of A054735. %K A088525 dead %O A088525 1,1