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 A098889 #2 Jul 19 2005 03:00:00 %S A098889 1,1,2,3,4,6,9,13,18,27,39,57,82,119,172,249,359,520,751,1085,1568, %T A098889 2265 %N A098889 Duplicate of A061481. %K A098889 dead %O A098889 1,3