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 A036356 #1 Dec 11 1999 03:00:00 %S A036356 1,1,2,3,7,16,54,283 %N A036356 Erroneous version of A002854. %K A036356 dead %O A036356 0,3