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 A032511 #7 May 11 2007 03:00:00 %S A032511 6,12,548,1769,92994,513311 %N A032511 Duplicate of A036900. %K A032511 dead %O A032511 1,1