A039561 Numbers whose base-4 representation has the number of 0's, 2's and 3's.

1, 5, 21, 35, 44, 50, 56, 75, 78, 85, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 283, 286, 295, 301, 310, 313, 331, 334, 341, 355, 364, 370, 376, 391, 397, 403, 412, 433, 436, 454, 457, 466, 472, 481, 484, 535, 541, 565

Offset

1,2

Links

Table of n, a(n) for n=1..54.

Mathematica

Select[Range[600], DigitCount[#, 4, 0]==DigitCount[#, 4, 2]==DigitCount[#, 4, 3]&] (* Harvey P. Dale, May 30 2017 *)

Crossrefs

Cf. A007090.

Sequence in context: A317039 A317693 A145026 * A063575 A302873 A170837

Adjacent sequences: A039558 A039559 A039560 * A039562 A039563 A039564

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved