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 A036699 #4 Sep 29 2006 03:00:00 %S A036699 0,1,2,4,5,8,8,9,12,14,16,15,16,22,21,24,22,26,27,30,32,29,36,34,35,42 %N A036699 Duplicate of A036694. %K A036699 dead %O A036699 0,3