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A043348 Numbers having four 3's in base 4. 0
255, 511, 767, 831, 895, 959, 975, 991, 1007, 1011, 1015, 1019, 1020, 1021, 1022, 1279, 1535, 1791, 1855, 1919, 1983, 1999, 2015, 2031, 2035, 2039, 2043, 2044, 2045, 2046, 2303, 2559, 2815, 2879, 2943, 3007, 3023, 3039 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..38.

MATHEMATICA

Select[Range[3100], DigitCount[#, 4, 3]==4&] (* Harvey P. Dale, Jun 09 2017 *)

CROSSREFS

Cf. A007090.

Sequence in context: A182221 A053339 A031197 * A031469 A045065 A158250

Adjacent sequences:  A043345 A043346 A043347 * A043349 A043350 A043351

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 29 22:13 EDT 2021. Contains 346346 sequences. (Running on oeis4.)