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 A098066 #3 Feb 24 2006 03:00:00 %S A098066 1,2,3,1,2,3,4,2,1,2,3,3,2,3,4,4,3,2,3,4,4,3,4,5 %N A098066 Duplicate of A096436. %K A098066 dead %O A098066 1,2