A039562 Numbers whose base-4 representation has the same number of 1's, 2's and 3's.

0, 27, 30, 39, 45, 54, 57, 75, 78, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 267, 270, 291, 300, 306, 312, 387, 396, 432, 450, 456, 480, 519, 525, 531, 540, 561, 564, 579, 588, 624, 705, 708, 720, 774, 777, 786, 792, 801

Offset

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[0, 1000], Length[Union[Most[DigitCount[#, 4]]]]==1&] (* Harvey P. Dale, Oct 04 2016 *)

Crossrefs

Cf. A007090.

Sequence in context: A090043 A030491 A023742 * A160394 A316729 A095387

Adjacent sequences: A039559 A039560 A039561 * A039563 A039564 A039565

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved