A045024 Numbers whose base-4 representation contains exactly two 0's and one 1.

16, 66, 67, 72, 76, 96, 112, 129, 132, 144, 193, 196, 208, 266, 267, 270, 271, 290, 291, 296, 300, 306, 307, 312, 316, 386, 387, 392, 396, 416, 432, 450, 451, 456, 460, 480, 496, 518, 519, 521, 525, 530, 531, 536, 540, 545, 548

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1700

Mathematica

Select[Range[8000], DigitCount[#, 4, 0] == 2 && DigitCount[#, 4, 1] == 1 &] (* Vincenzo Librandi, Sep 22 2016 *)

Crossrefs

Cf. A007090.

Sequence in context: A253673 A041494 A057689 * A043153 A039330 A043933

Adjacent sequences: A045021 A045022 A045023 * A045025 A045026 A045027

Keyword

nonn,base

Author

Clark Kimberling

Status

approved