A043718 Numbers whose base-15 representation has an odd number of runs.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 241, 255, 256, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272

Offset

1,2

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Mathematica

A043718Q[k_] := OddQ[Length[Split[IntegerDigits[k, 15]]]];
Select[Range[300], A043718Q] (* Paolo Xausa, Oct 28 2025 *)

Crossrefs

Cf. A043704 (complement).

Sequence in context: A044964 A044826 A048312 * A296756 A029960 A297286

Adjacent sequences: A043715 A043716 A043717 * A043719 A043720 A043721

Keyword

nonn,base

Author

Clark Kimberling

Extensions

More terms from Paolo Xausa, Oct 28 2025

Status

approved