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 A085038 #3 Feb 20 2005 03:00:00 %S A085038 3,4,5,6,7,10,13,12,11,14,17,18,19 %N A085038 Erroneous version of A063934. %K A085038 dead %O A085038 1,1