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 A060960 #3 May 11 2007 03:00:00 %S A060960 0,1,1,2,2,3,3,3,3,4,4,5,5,6,6,4,4,5,5,6,6,7,7,7,7,8,8,9,9,10,10,5,5,6 %N A060960 Duplicate of A073642. %K A060960 dead %O A060960 1,4