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 A081416 #3 May 11 2007 03:00:00 %S A081416 18731,25621,28069,30059,31051,44741,76913,97441,103669,106681,118831 %N A081416 Duplicate of A051795. %K A081416 dead %O A081416 1,1