%I A063557
%S A063557 1,3,19,24,56,49,60,78,87,100,108,143,169,145,210,160,183,193,260,270,
%T A063557 312,321,325,353,348,419,388,409,316,403,465,502,483,489,561,533,443,
%U A063557 565,691,646,677,552,721,711,687,700,791,813,768,867,806
%N A063557 Smallest power of 3 having just n 2's in its decimal representation.
%t A063557 a = {}; Do[k = 1; While[ Count[ IntegerDigits[3^k], 2] != n, k++ ]; a 
               = Append[a, k], {n, 0, 50} ]; a
%Y A063557 Sequence in context: A042231 A019408 A070045 this_sequence A062619 A108137 
               A102978
%Y A063557 Adjacent sequences: A063554 A063555 A063556 this_sequence A063558 A063559 
               A063560
%K A063557 base,nonn
%O A063557 0,2
%A A063557 Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001