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 A072662 #5 Jul 30 2017 21:42:22 %S A072662 0,0,1,0,1,2,0,1,0,2,3,2,1,4,0,1,0,3,2,2,3,0,4,5,4,1,6,0,1,4,2,3,2,3, %T A072662 8,0,1,0,5,2,4,5,0,6,7,6,1,4,4,5,4,3,6,2,3,0,8,9,8,1,10,0,1,8,2,3,2,5, %U A072662 12,0,1,0,7,2,6,7,8,4,5,4,5,6,4,5,4,6,7,6,3,16,0,1,0,9,2,8,9,0,10,11,10,1 %N A072662 Composition of the A059906 and A048679, i.e., a(n) = A059906(A048679(n)). %Y A072662 The other side of this projection is A072661. Used to construct the permutations A072657 and A072659. %K A072662 nonn %O A072662 0,6 %A A072662 _Antti Karttunen_, Jun 02 2002