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 A286580 #11 Jun 11 2017 15:15:46 %S A286580 1,2,4,2,4,8,6,2,4,12,8,6,16,12,6,2,4,12,12,8,36,24,6,16,30,12,6,32, %T A286580 24,12,6,2,4,12,12,12,36,60,8,36,24,24,6,72,72,30,16,30,48,12,6,60,60, %U A286580 32,24,30,12,6,64,48,24,12,6,2,4,12,12,12,36,60,12,36,60,60,8,72,180,24,36,24,180,24,6,72,120,72,72,30,30,16 %N A286580 a(n) = A278222(A233275(n)). %H A286580 Antti Karttunen, <a href="/A286580/b286580.txt">Table of n, a(n) for n = 0..16383</a> %H A286580 Indranil Ghosh, <a href="/A286580/a286580.txt">Python program to generate the sequence</a> %F A286580 a(n) = A278222(A233275(n)). %o A286580 (Scheme) (define (A286580 n) (A278222 (A233275 n))) %Y A286580 Cf. A233275, A278219, A278222, A286538, A286581 (rgs-version of this sequence). %K A286580 nonn %O A286580 0,2 %A A286580 _Antti Karttunen_, Jun 03 2017