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 A236561 #10 Mar 02 2014 09:20:35 %S A236561 0,0,1,1,2,3,4,5,6,6,6,9,10,11,11,11,12,14,15,16,17,17,18,21,22,22,22, %T A236561 22,23,26,27,27,29,29,30,31,32,34,34,35,35,38,38,39,39,41,42,44,45,46, %U A236561 46,46,47,48,48,51,51,53,54,57,57,57,58,58,59,60,61,62 %N A236561 Values taken by the A049820, sorted into ascending order. %H A236561 Jaroslav Krizek, <a href="/A236561/b236561.txt">Table of n, a(n) for n = 1..10000</a> %Y A236561 Cf. A049820, A236562, A236563, A236564, A236565. %K A236561 nonn %O A236561 1,5 %A A236561 _Jaroslav Krizek_, Feb 09 2014