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 A286539 #10 May 20 2017 21:46:12 %S A286539 1,1,2,1,3,4,2,1,3,5,6,3,5,4,2,1,3,5,7,8,3,9,10,5,7,6,3,5,5,4,2,1,3,5, %T A286539 7,11,12,3,9,13,14,5,13,14,7,11,8,3,9,10,9,13,10,5,7,7,6,3,5,5,5,4,2, %U A286539 1,3,5,7,11,15,16,3,9,13,17,18,5,13,19,20,7,17,18,11,15,12,3,9,13,14,9,21,19,13,19,14,5,13,14,13,17,14,7,11,11,8,3,9,10 %N A286539 Restricted growth sequence of A286538. %H A286539 Antti Karttunen, <a href="/A286539/b286539.txt">Table of n, a(n) for n = 1..65537</a> %Y A286539 Cf. A267111, A286537, A286538, A286617, A286619, A278222. %K A286539 nonn,look %O A286539 1,3 %A A286539 _Antti Karttunen_, May 17 2017