%I #35 Oct 08 2019 17:09:57
%S 0,1,3,0,6,8,11,2,0,17,18,5,23,25,27,0,31,3,35,10,39,42,44,13,1,50,5,
%T 16,56,59,62,4,66,69,70,0,76,77,80,25,84,86,89,29,14,95,98,8,1,5,106,
%U 34,111,18,117,39,121,123,125,42,129,132,21,2,139,141,144
%N a(n) = log_2(A305677(n)).
%C a(n) <= A067722(n) - 1.
%C It is conjectured that A305677(n) > 0. If A305677(n) = 0, then define a(n) = -1.
%H Peter Kagey, <a href="/A321482/b321482.txt">Table of n, a(n) for n = 1..300</a>
%Y Cf. A067722, A305677.
%K nonn
%O 1,3
%A _Peter Kagey_, Nov 12 2018