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 A051922 #6 May 11 2007 03:00:00 %S A051922 1,12,63,224,630,1512,3234,6336,11583,20020,33033,52416,80444 %N A051922 Duplicate of A027810. %K A051922 dead %O A051922 0,2