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 A070068 #2 May 11 2007 03:00:00 %S A070068 9,99,1881,171171,1882881,306909603,11355655311,1033364633301 %N A070068 Duplicate of A068668. %K A070068 dead %O A070068 1,1