A043593 - OEIS

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A043593

Numbers whose base-4 representation has exactly 2 runs.

4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 20, 22, 23, 26, 31, 32, 37, 40, 41, 43, 47, 48, 53, 58, 60, 61, 62, 64, 80, 84, 86, 87, 90, 95, 106, 127, 128, 149, 160, 165, 168, 169, 171, 175, 191, 192, 213, 234, 240, 245, 250, 252, 253, 254, 256

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..55.

CROSSREFS

Cf. A007090.

Sequence in context: A216845 A031949 A043693 * A043827 A043830 A043834

Adjacent sequences: A043590 A043591 A043592 * A043594 A043595 A043596

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved