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 A098881 #2 Feb 24 2006 03:00:00 %S A098881 5,8,1,9,7,6,7,0,6,8,6,9,3,2,6,4,2,4,3,8,5,0,0,2,0,0,5,1,0,9,0,1,1,5,5 %N A098881 Duplicate of A073333. %K A098881 dead %O A098881 0,1