A044905 Numbers whose base-4 run lengths alternate: odd, even, odd, ...

1, 2, 3, 16, 21, 26, 31, 32, 37, 42, 47, 48, 53, 58, 63, 65, 66, 67, 104, 105, 107, 124, 125, 126, 129, 130, 131, 148, 150, 151, 188, 189, 190, 193, 194, 195, 212, 214, 215, 232, 233, 235, 256, 336, 341, 346, 351, 426, 511, 512, 597

Offset

1,2

Links

Table of n, a(n) for n=1..51.

Crossrefs

Cf. A007090.

Sequence in context: A061918 A122656 A171458 * A045877 A261840 A100643

Adjacent sequences: A044902 A044903 A044904 * A044906 A044907 A044908

Keyword

nonn,base

Author

Clark Kimberling

Status

approved