%I A063554
%S A063554 1,12,34,32,83,53,92,139,93,172,173,244,254,335,342,332,333,415,356,
%T A063554 434,506,473,477,476,517,532,596,643,662,673,731,729,603,735,850,793,
%U A063554 792,966,959,961,1043,1129,1131,1159,1153,1077,1157,1241,1078,1328
%N A063554 Smallest power of 2 having just n 9's in its decimal representation.
%t A063554 a = {}; Do[k = 1; While[ Count[ IntegerDigits[2^k], 9] != n, k++ ]; a 
               = Append[a, k], {n, 0, 50} ]; a
%Y A063554 Sequence in context: A043941 A117476 A122436 this_sequence A059805 A141694 
               A077295
%Y A063554 Adjacent sequences: A063551 A063552 A063553 this_sequence A063555 A063556 
               A063557
%K A063554 base,nonn
%O A063554 0,2
%A A063554 Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001