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 A066276 #3 May 11 2007 03:00:00 %S A066276 1,2,3,4,7,9,10,11,13,14,19,24,25,32,34,37,60,64,65,67,71,75,79,83,87, %T A066276 95,104,105,111,115,124,130,132,133,138,145,152,153,161,163,166,174, %U A066276 182,187,188,190,212,213,217,220,243,246,251,255,257,264,275,279,281 %N A066276 Duplicate of A060253. %K A066276 dead %O A066276 1,2