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 A094212 #4 Nov 10 2007 03:00:00 %S A094212 1,2,12872,1470944,622116992,125858012672,36758056208384 %N A094212 Duplicate of A070832. %K A094212 dead %O A094212 0,2