A045038 Numbers whose base-4 representation contains no 0's and exactly one 2.

2, 6, 9, 11, 14, 22, 25, 27, 30, 37, 39, 45, 47, 54, 57, 59, 62, 86, 89, 91, 94, 101, 103, 109, 111, 118, 121, 123, 126, 149, 151, 157, 159, 181, 183, 189, 191, 214, 217, 219, 222, 229, 231, 237, 239, 246, 249, 251, 254, 342, 345

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Mathematica

Select[Range[100000], DigitCount[#, 4, 0] == 0 && DigitCount[#, 4, 2] == 1 &] (* Vincenzo Librandi, Sep 23 2016 *)

Crossrefs

Cf. A007090.

Sequence in context: A192420 A139639 A187690 * A285951 A191252 A026348

Adjacent sequences: A045035 A045036 A045037 * A045039 A045040 A045041

Keyword

nonn,base

Author

Clark Kimberling

Status

approved