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 A290087 #8 Aug 07 2017 23:05:54 %S A290087 0,1,1,1,1,2,1,2,2,2,1,5,1,5,4,5,1,5,1,5,4,5,1,8,3,4,4,8,1,6,1,8,7,4, %T A290087 6,13,1,8,8,13,1,8,1,13,11,13,1,17,4,8,10,11,1,11,8,17,11,8,1,18,1,17, %U A290087 10,17,9,12,1,11,14,12,1,21,1,10,19,21,9,10,1,21,10,11,1,21,11,18,16,21,1,18,10,21,18,21,12,25,1,28,19,21,1,19,1,28,29 %N A290087 a(1) = 0; for n > 1, a(n) = A289626(A051953(n)). %H A290087 Antti Karttunen, <a href="/A290087/b290087.txt">Table of n, a(n) for n = 1..16384</a> %F A290087 a(1) = 0; for n > 1, a(n) = A289626(A051953(n)). %Y A290087 Cf. A051953, A054571, A289626, A290086, A290085, A290086, A290088, A290089. %K A290087 nonn %O A290087 1,6 %A A290087 _Antti Karttunen_, Aug 07 2017