A045028 Numbers whose base-4 representation contains exactly three 0's and no 1's.

128, 192, 514, 515, 520, 524, 544, 560, 640, 704, 770, 771, 776, 780, 800, 816, 896, 960, 2058, 2059, 2062, 2063, 2082, 2083, 2088, 2092, 2098, 2099, 2104, 2108, 2178, 2179, 2184, 2188, 2208, 2224, 2242, 2243, 2248, 2252

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1500

Mathematica

Select[Range[10000], DigitCount[#, 4, 0] == 3 && DigitCount[#, 4, 1] == 0 &] (* Vincenzo Librandi, Sep 22 2016 *)

Crossrefs

Cf. A007090.

Sequence in context: A036331 A046308 A110290 * A255997 A256821 A172421

Adjacent sequences: A045025 A045026 A045027 * A045029 A045030 A045031

Keyword

nonn,base

Author

Clark Kimberling

Status

approved