A043711 Numbers whose base-8 representation has an odd number of runs.

1, 2, 3, 4, 5, 6, 7, 9, 18, 27, 36, 45, 54, 63, 65, 66, 67, 68, 69, 70, 71, 73, 80, 81, 83, 84, 85, 86, 87, 88, 89, 90, 92, 93, 94, 95, 96, 97, 98, 99, 101, 102, 103, 104, 105, 106, 107, 108, 110, 111, 112, 113, 114, 115, 116, 117, 119, 120

Offset

1,2

Links

Table of n, a(n) for n=1..58.

Mathematica

Select[Range[150], OddQ[Length[Split[IntegerDigits[#, 8]]]]&] (* Harvey P. Dale, Jul 07 2025 *)

Crossrefs

Sequence in context: A297142 A044819 A048305 * A296706 A029803 A297265

Adjacent sequences: A043708 A043709 A043710 * A043712 A043713 A043714

Keyword

nonn,base

Author

Clark Kimberling

Status

approved