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A043420 Numbers having four 6's in base 7. 1
2400, 4801, 7202, 9603, 12004, 14405, 14748, 15091, 15434, 15777, 16120, 16463, 16512, 16561, 16610, 16659, 16708, 16757, 16764, 16771, 16778, 16785, 16792, 16799, 16800, 16801, 16802, 16803, 16804, 16805, 19207 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..2500

MATHEMATICA

Select[Range[20000], DigitCount[#, 7, 6]==4&] (* Harvey P. Dale, Mar 27 2017 *)

CROSSREFS

Cf. A007093.

Sequence in context: A108055 A286342 A204357 * A233880 A234453 A236084

Adjacent sequences:  A043417 A043418 A043419 * A043421 A043422 A043423

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)