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 A179840 #3 Mar 31 2012 13:21:20 %S A179840 1,2,3,3,4,5,4,6,6,6,7,8,8,7,7,7,10,11,10,8,8,10,12,13,12,11,11,13,14, %T A179840 14,11,11,11,10,11,14,15,14,13,15,17,17,13,10,15,20,21,18,14,13,15,19, %U A179840 19,18,16,21,21,18,16,18,17,19,21,23,25,23,17,18,20,20,21,20,23,25,28 %N A179840 a(n) = A179751(A080068(n)). %H A179840 A. Karttunen, <a href="/A179840/b179840.txt">Table of n, a(n) for n = 1..1024</a> %Y A179840 Cf. also A080071, A154477, A179844 & A179841-A179843. %K A179840 nonn %O A179840 1,2 %A A179840 _Antti Karttunen_, Aug 03 2010