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A031467 Numbers whose base-4 representation has 2 fewer 0's than 3's. 0
15, 31, 47, 55, 59, 61, 62, 95, 111, 119, 123, 125, 126, 159, 175, 183, 187, 189, 190, 207, 215, 219, 221, 222, 231, 235, 237, 238, 243, 245, 246, 249, 250, 252, 319, 351, 367, 375, 379, 381, 382, 415, 431, 439, 443, 445, 446 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Range[500], DigitCount[#, 4, 0]==DigitCount[#, 4, 3]-2&] (* Harvey P. Dale, Oct 08 2020 *)

CROSSREFS

Cf. A007090.

Sequence in context: A042017 A043346 A023719 * A045063 A044076 A319282

Adjacent sequences:  A031464 A031465 A031466 * A031468 A031469 A031470

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 2 02:53 EDT 2021. Contains 346409 sequences. (Running on oeis4.)