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 A034622 #4 May 11 2007 03:00:00 %S A034622 1,0,0,26208,530712,6368544,47331648,256864608,1116087336 %N A034622 Duplicate of A004046. %K A034622 dead %O A034622 0,4