A044966 Numbers whose base-3 representation contains no 0's and exactly one 1.

1, 5, 7, 17, 23, 25, 53, 71, 77, 79, 161, 215, 233, 239, 241, 485, 647, 701, 719, 725, 727, 1457, 1943, 2105, 2159, 2177, 2183, 2185, 4373, 5831, 6317, 6479, 6533, 6551, 6557, 6559, 13121, 17495, 18953, 19439, 19601, 19655, 19673

Offset

1,2

Links

Table of n, a(n) for n=1..43.

Mathematica

Select[Range[20000], DigitCount[#, 3, 0]==0&&DigitCount[#, 3, 1]==1&] (* Harvey P. Dale, Oct 21 2017 *)

Crossrefs

Cf. A007089.

Sequence in context: A342799 A043879 A370855 * A359297 A283159 A283145

Adjacent sequences: A044963 A044964 A044965 * A044967 A044968 A044969

Keyword

nonn,base

Author

Clark Kimberling

Status

approved