A045071 Numbers whose base-4 representation contains exactly two 0's and no 3's.

16, 32, 65, 66, 68, 72, 80, 96, 129, 130, 132, 136, 144, 160, 261, 262, 265, 266, 273, 274, 276, 280, 289, 290, 292, 296, 321, 322, 324, 328, 336, 352, 385, 386, 388, 392, 400, 416, 517, 518, 521, 522, 529, 530, 532, 536, 545

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Mathematica

Select[Range[600], DigitCount[#, 4, 0]==2&&DigitCount[#, 4, 3]==0&] (* Harvey P. Dale, Apr 07 2022 *)

Crossrefs

Cf. A007090.

Sequence in context: A067053 A271634 A031463 * A007824 A235056 A115686

Adjacent sequences: A045068 A045069 A045070 * A045072 A045073 A045074

Keyword

nonn,base

Author

Clark Kimberling

Status

approved