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 A121168 #1 Sep 29 2006 03:00:00 %S A121168 7,9,3,8,6,9,6,1,4,7,8,7,6 %N A121168 No explanation was given by the submitter. %K A121168 nonn,unkn %O A121168 0,1 %A A121168 Mehul Shah (softwaredesk(AT)yahoo.com), Aug 14 2006