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 A066614 #2 Sep 29 2006 03:00:00 %S A066614 2,5,8,12,20,23,33 %N A066614 Erroneous version of A053614. %K A066614 dead %O A066614 1,1