A043695 Numbers whose base-6 representation has an even number of runs.

6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 36, 42, 44, 45, 46, 47, 50, 57, 64, 71, 72, 79, 84, 85, 87, 88, 89, 93, 100, 107, 108, 115, 122, 126, 127, 128, 130, 131, 136, 143, 144, 151, 158, 165, 168, 169, 170, 171, 173

Offset

1,1

Links

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

Mathematica

A043695Q[k_] := EvenQ[Length[Split[IntegerDigits[k, 6]]]];
Select[Range[200], A043695Q] (* Paolo Xausa, Oct 27 2025 *)

Crossrefs

Cf. A007092.

Sequence in context: A135558 A031951 A043610 * A076517 A138103 A043373

Adjacent sequences: A043692 A043693 A043694 * A043696 A043697 A043698

Keyword

nonn,base

Author

Clark Kimberling

Extensions

More terms from Paolo Xausa, Oct 27 2025

Status

approved