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%I #14 Jun 03 2018 10:47:51
%S 0,1,2,3,4,3,2,4,5,3,4,5,4,3,5,6,4,6,4,6,5,6,5,4,6,4,7,6,5,6,5,7,5,6,
%T 7,5,6,7,5,6,7,5,7,5,7,6,7,6,7,6,7,6,8,5,7,8,5,7,8,5,7,8,6,7,6,7,6,7,
%U 6,8,6,7,8,6,8,5
%N Number of bits in binary representation of A252867.
%C Created as part of a study to try to show that A252867 is a permutation, and, more specifically, to understand terms 6171 - 7025 of A252867 (see the graph of that sequence).
%H N. J. A. Sloane, <a href="/A303597/b303597.txt">Table of n, a(n) for n = 0..50000</a>
%Y Cf. A252867, A007088, A253050, A253589, A303596.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, May 30 2018