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 A051520 #5 May 11 2007 03:00:00 %S A051520 11264,14175,28160,44100,46464,51200,64000,82944,95744,96000,107008, %T A051520 109375 %N A051520 Duplicate of A051346. %K A051520 dead %O A051520 1,1