%I #5 Mar 30 2012 18:35:26
%S 0,0,0,0,1,0,1,0,1,0,1,2,0,1,2,0,1,2,0,1,2,3,0,1,2,3,0,1,2,3,0,1,2,3,
%T 4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,
%U 5,0,6,1,2,3,4,5,0,6,1,2,3,4,5,0,6,1,2,3,4,5,0,6,1,7,2,3,4,5,0,6,1,7,2,3,4,5,0,6
%N Exponent of 9 (value of j) in n-th number of form 2^i*9^j.
%K nonn
%O 1,12
%A _David W. Wilson_