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 A260510 #10 Jul 28 2015 17:07:06 %S A260510 0,1,1,0,1,1,1,1,0,1,3,1,4,1,1,0,6,1,7,2,1,2,9,1,0,2,0,1,13,1,13,2,1, %T A260510 4,1,0,16,6,2,1,19,3,20,2,2,7,23,1,0,0,3,1,26,2,1,1,2,8,29,1,31,11,1, %U A260510 0,0,0,35,2,5,1,37,1,39,13,1,2,2,1,42,1,0,15 %N A260510 a(n) = log_2(A259527(n)). %H A260510 Peter Kagey, <a href="/A260510/b260510.txt">Table of n, a(n) for n = 1..10000</a> %F A260510 a(n) = log_2(A259527(n)). %Y A260510 Cf. A259527. %K A260510 nonn %O A260510 1,11 %A A260510 _Peter Kagey_, Jul 27 2015