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 A243494 #19 Jul 21 2014 11:31:35 %S A243494 1,2,3,4,5,6,8,10,11,12,13,14,16,20,22,23,24,26,28,31,32,34,37,39,40, %T A243494 44,46,47,48,52,56,61,62,64,68,74,76,78,80,86,88,89,92,94,96,101,104, %U A243494 109,112,113,118,122,123,124 %N A243494 A243493 sorted into ascending order, with duplicates removed. %H A243494 Antti Karttunen, <a href="/A243494/b243494.txt">Table of n, a(n) for n = 0..137</a> %Y A243494 Subsequences: A000079, A007097. %Y A243494 Cf. A243493, A209638, A243497. %K A243494 nonn %O A243494 0,2 %A A243494 _Antti Karttunen_, Jun 07 2014