A045050 Numbers whose base-4 representation contains exactly two 0's and three 2's.

522, 546, 552, 642, 648, 672, 1066, 1162, 1186, 1192, 1546, 1570, 1576, 1666, 1672, 1696, 2074, 2086, 2089, 2091, 2094, 2106, 2122, 2146, 2152, 2182, 2185, 2187, 2190, 2194, 2200, 2209, 2211, 2212, 2220, 2226, 2232, 2250

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..4000

Mathematica

Select[Range[7000], DigitCount[#, 4, 0] == 2 && DigitCount[#, 4, 2] == 3 &] (* Vincenzo Librandi, Sep 21 2016 *)

Crossrefs

Cf. A007090.

Sequence in context: A057699 A033525 A138647 * A305268 A004968 A263306

Adjacent sequences: A045047 A045048 A045049 * A045051 A045052 A045053

Keyword

nonn,base

Author

Clark Kimberling

Status

approved