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 A079970 #3 May 11 2007 03:00:00 %S A079970 1,1,1,2,4,7,12,20,34,59,102,175,300,515,885,1521,2613,4488,7709,13243 %N A079970 Duplicate of A079816. %K A079970 dead %O A079970 0,4