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 A079860 #14 Jun 13 2012 23:23:51 %S A079860 1,1,4,8,21,39,92,170,360,667,1316,2393,4541,8100,14824,26071 %N A079860 Duplicate of A061256. %K A079860 dead %O A079860 0,3