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A039323 Numbers whose base-7 representation has the same nonzero number of 3's and 4's. 1
25, 31, 74, 80, 123, 129, 151, 158, 165, 175, 176, 177, 180, 181, 186, 193, 199, 206, 213, 217, 218, 219, 222, 223, 234, 241, 270, 276, 319, 325, 368, 374, 417, 423, 466, 472, 494, 501, 508, 518, 519, 520, 523, 524, 529, 536, 542, 549, 556, 560, 561, 562 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Range[600], DigitCount[#, 7, 3]==DigitCount[#, 7, 4]>0&] (* Harvey P. Dale, May 14 2022 *)

CROSSREFS

Cf. A007093.

Sequence in context: A184042 A157646 A198003 * A043146 A043926 A202000

Adjacent sequences:  A039320 A039321 A039322 * A039324 A039325 A039326

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified August 19 18:30 EDT 2022. Contains 356229 sequences. (Running on oeis4.)