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 A060079 #4 May 11 2007 03:00:00 %S A060079 1,2,40,2240,246400,44844800,12197785600,4635158528000, %T A060079 2345390215168000 %N A060079 Duplicate of A052502. %K A060079 dead %O A060079 0,2