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 A046750 #1 Dec 11 1999 03:00:00 %S A046750 1,1,2,4,11,34,156,1044,12344,308168 %N A046750 Erroneous version of A000088. %K A046750 dead %O A046750 0,3