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 A030136 #6 Mar 30 2012 18:35:28 %S A030136 1,1,1,3,4,9,15,33,59,120,188,278,286,230,118,53,14,5,1,1 %N A030136 Number of triangular n-ominoes on the icosahedron. %K A030136 nonn,fini,full %O A030136 1,4 %A A030136 _David W. Wilson_