A043784 - OEIS

%I #8 Nov 21 2013 12:47:03

%S 30,32,33,34,46,47,48,50,57,59,60,61,64,65,69,70,84,86,87,88,90,93,95,

%T 98,99,103,105,106,111,113,114,115,127,128,129,131,136,137,139,143,

%U 144,147,149,152,154,155,156,158,165,167,168,169

%N Numbers n such that number of runs in the base 3 representation of n is congruent to 4 mod 5.

%t Select[Range[200],Mod[Length[Split[IntegerDigits[#,3]]],5]==4&] (* _Harvey P. Dale_, Oct 15 2011 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_