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A039370 Numbers whose base-9 representation has the same nonzero number of 1's and 7's. 0
16, 64, 88, 106, 115, 124, 133, 142, 144, 146, 147, 148, 149, 150, 152, 160, 178, 226, 259, 307, 340, 388, 421, 469, 502, 550, 568, 576, 578, 579, 580, 581, 582, 584, 586, 595, 604, 613, 622, 640, 664, 712, 736, 754, 763, 772, 781, 790, 792, 794, 795, 796 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..52.

MATHEMATICA

Select[Range[800], DigitCount[#, 9, 1]==DigitCount[#, 9, 7]>0&] (* Harvey P. Dale, Jan 30 2021 *)

CROSSREFS

Cf. A007095.

Sequence in context: A117453 A340588 A305242 * A324880 A304476 A129588

Adjacent sequences:  A039367 A039368 A039369 * A039371 A039372 A039373

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified December 7 22:22 EST 2021. Contains 349589 sequences. (Running on oeis4.)