A043786 - OEIS

%I #5 Mar 30 2012 18:56:38

%S 1,2,4,8,13,26,40,80,121,242,364,728,820,821,825,826,829,830,831,833,

%T 867,869,870,871,874,875,879,880,901,902,906,907,910,911,912,914,921,

%U 923,924,925,937,938,939,941,1093,1245,1247,1248

%N Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 6.

%K nonn,base

%O 1,2

%A _Clark Kimberling_