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A039561 Numbers whose base-4 representation has the number of 0's, 2's and 3's. 0
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 21 16:31 EDT 2021. Contains 347598 sequences. (Running on oeis4.)