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A043504 Numbers whose number of 3's in base 10 is 4. 1
3333, 13333, 23333, 30333, 31333, 32333, 33033, 33133, 33233, 33303, 33313, 33323, 33330, 33331, 33332, 33334, 33335, 33336, 33337, 33338, 33339, 33343, 33353, 33363, 33373, 33383, 33393, 33433, 33533, 33633, 33733 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

MATHEMATICA

Select[Range[34000], DigitCount[#, 10, 3]==4&]  (* Harvey P. Dale, Feb 02 2011 *)

CROSSREFS

Sequence in context: A253538 A147881 A230307 * A251331 A261656 A231955

Adjacent sequences:  A043501 A043502 A043503 * A043505 A043506 A043507

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 20 18:50 EDT 2019. Contains 327245 sequences. (Running on oeis4.)