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 A166270 #3 Mar 31 2012 13:21:20 %S A166270 2,6,8,10,10,10,14,4,18,14,12,22,16,20,2,18,28,20,30,14,14,28,28,32, %T A166270 16,26,26,24,36,28,26,30,0,32,18,0,44,32,38,32,22,34,32,46,38,18,44, %U A166270 36,32,4,36,54,24,46,22,30,48,8,54,18,46,46,40,0,38,30,44,48,44,34,36 %N A166270 Bisection 2n of A165460. %C A166270 Conjecture: a(n) = 2*A166268(n). %H A166270 A. Karttunen, <a href="/A166270/b166270.txt">Table of n, a(n) for n = 0..16383</a> %Y A166270 a(n) = A165460(A005843(n)). %K A166270 nonn %O A166270 0,1 %A A166270 _Antti Karttunen_, Oct 13 2009