%I A034888
%S A034888 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11,12,
%T A034888 12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,
%U A034888 21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29
%N A034888 Number of digits in 3^n.
%F A034888 a(n) = floor(n*ln(3)/ln(10)) + 1. E.g. a(10)=5 because 3^10=59049 and 
               floor(10*ln(3)/ln(10)+1=4+1=5. - Jaap Spies (j.spies(AT)hccnet.nl), 
               Dec 15 2003
%p A034888 seq(floor(n*ln(3)/ln(10))+1, n=0..100);
%Y A034888 Sequence in context: A071542 A088461 A135020 this_sequence A086388 A080513 
               A111660
%Y A034888 Adjacent sequences: A034885 A034886 A034887 this_sequence A034889 A034890 
               A034891
%K A034888 nonn,base,easy
%O A034888 0,4
%A A034888 N. J. A. Sloane (njas(AT)research.att.com).