A043715 Numbers whose base-12 representation has an odd number of runs.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 157, 168, 169, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 184, 185, 186, 187

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Programs

Mathematica

Select[Range[200],OddQ[Length[Split[IntegerDigits[#,12]]]]&] (* Harvey P. Dale, Jul 25 2023 *)