%I A025639
%S A025639 0,1,2,3,0,4,1,5,2,6,3,0,7,4,1,8,5,2,9,6,3,0,10,7,4,1,11,8,5,2,12,9,6,
               3,
%T A025639 13,0,10,7,4,14,1,11,8,5,15,2,12,9,6,16,3,13,0,10,7,17,4,14,1,11,8,18,
               5,
%U A025639 15,2,12,9,19,6,16,3,13,0,10,20,7,17,4,14,1,11,21,8,18,5,15,2,12,22,9,
               19
%N A025639 Exponent of 2 (value of i) in n-th number of form 2^i*10^j.
%Y A025639 Sequence in context: A014197 A021438 A025638 this_sequence A140502 A154860 
               A132774
%Y A025639 Adjacent sequences: A025636 A025637 A025638 this_sequence A025640 A025641 
               A025642
%K A025639 nonn
%O A025639 1,3
%A A025639 David W. Wilson (davidwwilson(AT)comcast.net)