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A043406 Numbers having two 3's in base 7. 0
24, 73, 122, 150, 157, 164, 168, 169, 170, 172, 173, 174, 178, 185, 192, 220, 269, 318, 367, 416, 465, 493, 500, 507, 511, 512, 513, 515, 516, 517, 521, 528, 535, 563, 612, 661, 710, 759, 808, 836, 843, 850, 854, 855, 856, 858 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

MATHEMATICA

Select[Range[1000], DigitCount[#, 7, 3]==2&]  (* Harvey P. Dale, Mar 28 2011 *)

CROSSREFS

Cf. A007093.

Sequence in context: A329077 A339883 A042128 * A044162 A044543 A161587

Adjacent sequences:  A043403 A043404 A043405 * A043407 A043408 A043409

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 24 11:00 EDT 2022. Contains 354033 sequences. (Running on oeis4.)