%I #5 Mar 30 2012 18:35:26
%S 0,1,0,2,1,0,3,2,1,4,0,3,2,5,1,4,0,3,6,2,5,1,4,7,0,3,6,2,5,8,1,4,7,0,
%T 3,6,9,2,5,8,1,4,7,10,0,3,6,9,2,5,8,11,1,4,7,10,0,3,6,9,12,2,5,8,11,1,
%U 4,7,10,0,13,3,6,9,12,2,5,8,11,1,14,4,7,10,0,13,3,6,9,12,2,15,5,8,11,1,14,4,7
%N Exponent of 5 (value of i) in n-th number of form 5^i*10^j.
%K nonn
%O 1,4
%A _David W. Wilson_