%I A043774
%S A043774 1,2,4,8,13,26,30,32,33,34,40,46,47,48,50,57,59,60,61,64,65,69,
%T A043774 70,80,84,86,87,88,90,93,95,98,99,103,105,106,111,113,114,115,
%U A043774 121,127,128,129,131,136,137,139,143,144,147,149,152,154,155
%N A043774 Numbers n such that number of runs in the base 3 representation of n 
               is congruent to 1 mod 3.
%Y A043774 Sequence in context: A000077 A054164 A102704 this_sequence A043777 A043781 
               A043786
%Y A043774 Adjacent sequences: A043771 A043772 A043773 this_sequence A043775 A043776 
               A043777
%K A043774 nonn,base
%O A043774 1,2
%A A043774 Clark Kimberling (ck6(AT)evansville.edu)