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 A064176 #19 Oct 30 2013 22:06:00 %S A064176 1,6,8,10,12,14,15,18,20,21,22,26,27,28,32,33,34,35,36,38,39,44,45,46, %T A064176 48,50,51,52,55,57,58,62,63,64,65,68,69,74,75,76,77,80,82,85,86,87,91, %U A064176 92,93,94,95,98,99,100,106,111,112,115,116,117,118,119,120,122,123,124 %N A064176 Duplicate of A000379. %K A064176 dead %O A064176 1,2