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 A286537 #5 May 17 2017 17:56:33 %S A286537 1,2,1,2,3,1,4,2,5,3,1,6,5,4,4,2,5,5,3,1,7,8,5,9,5,4,6,10,9,4,4,2,5,5, %T A286537 5,3,1,7,11,8,5,12,11,5,9,5,4,7,13,10,14,13,12,9,10,9,4,6,10,12,9,4,4, %U A286537 2,5,5,5,5,3,1,7,11,11,8,5,12,15,11,5,12,11,5,9,5,4,7,15,13,10,16,17,13,18,15,12,12,19,10,20,13,12,9,10,9,4,7,13,10 %N A286537 Restricted growth sequence of A286536. %H A286537 Antti Karttunen, <a href="/A286537/b286537.txt">Table of n, a(n) for n = 1..65537</a> %Y A286537 Cf. A286536, A286539. %K A286537 nonn %O A286537 1,2 %A A286537 _Antti Karttunen_, May 17 2017