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 A073635 #4 May 11 2007 03:00:00 %S A073635 1,0,1,2,3,4,5,6,5,6,5,6,5,6,7,6,7,8,7,8,9,10,9,8,9,8,9,8,7,8,7,8,9,10 %N A073635 Duplicate of A071532. %K A073635 dead %O A073635 1,4