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A039041 Numbers whose base-7 representation has the same number of 2's and 4's. 1
0, 1, 3, 5, 6, 7, 8, 10, 12, 13, 18, 21, 22, 24, 26, 27, 30, 35, 36, 38, 40, 41, 42, 43, 45, 47, 48, 49, 50, 52, 54, 55, 56, 57, 59, 61, 62, 67, 70, 71, 73, 75, 76, 79, 84, 85, 87, 89, 90, 91, 92, 94, 96, 97, 102, 109, 123, 126, 127, 129, 131, 132, 137, 144, 147, 148 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[0, 200], DigitCount[#, 7, 2]==DigitCount[#, 7, 4]&] (* Harvey P. Dale, Dec 18 2011 *)

CROSSREFS

Cf. A007093.

Sequence in context: A080651 A047330 A093511 * A079253 A076054 A253201

Adjacent sequences:  A039038 A039039 A039040 * A039042 A039043 A039044

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified September 26 09:15 EDT 2021. Contains 347664 sequences. (Running on oeis4.)