A045124 - OEIS

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A045124

Numbers whose base-4 representation contains exactly three 1's and no 3's.

0

21, 69, 81, 84, 86, 89, 101, 149, 261, 273, 276, 278, 281, 293, 321, 324, 326, 329, 336, 338, 344, 346, 353, 356, 358, 361, 389, 401, 404, 406, 409, 421, 533, 581, 593, 596, 598, 601, 613, 661, 1029, 1041, 1044, 1046, 1049, 1061

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

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

CROSSREFS

Sequence in context: A272627 A043339 A023712 * A045100 A038471 A224072

Adjacent sequences: A045121 A045122 A045123 * A045125 A045126 A045127

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved