A043715 - OEIS

%I #10 Jul 25 2023 15:23:46

%S 1,2,3,4,5,6,7,8,9,10,11,13,26,39,52,65,78,91,104,117,130,143,145,146,

%T 147,148,149,150,151,152,153,154,155,157,168,169,171,172,173,174,175,

%U 176,177,178,179,180,181,182,184,185,186,187

%N Numbers whose base-12 representation has an odd number of runs.

%t Select[Range[200],OddQ[Length[Split[IntegerDigits[#,12]]]]&] (* _Harvey P. Dale_, Jul 25 2023 *)

%K nonn,base

%O 1,2

%A _Clark Kimberling_