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 A290287 #24 Aug 22 2017 20:18:37 %S A290287 8,16,32,16,24,48,64,16,84,12,32,36,64,64,52,128,56,48,128,96,68,144, %T A290287 256,136,252,184,108,256,208,324,512,224,232,400,192,512,384,272,232, %U A290287 576,148,256,36,616,208,168,344,736,432,564,64,196,328,864,204,832,212,216,960,420,896,928,400,768,1008,424,768,480,576 %N A290287 Nonzero entries in A263014 in order of appearance. %C A290287 a(n) = A263014(A263016(n)). %H A290287 Hans Havermann, <a href="/A290287/b290287.txt">Table of n, a(n) for n = 1..530</a> %Y A290287 Cf. A263014, A263016. %K A290287 nonn %O A290287 1,1 %A A290287 _Hans Havermann_, Jul 26 2017