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 A140858 #10 Mar 03 2012 14:31:55 %S A140858 1,1,1,2,3,3,4,5,5,5,5,6,7 %N A140858 This sequence is identical with A075458. %K A140858 dead %O A140858 1,4