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 A069541 #4 May 11 2007 03:00:00 %S A069541 6,24,42,60,114,132,150,204,222,240,312,330,402,420,510,600,1014,1032 %N A069541 Duplicate of A062768. %K A069541 dead %O A069541 1,1