A039355 - OEIS

A039355

Numbers whose base-8 representation has the same nonzero number of 5's and 7's.

47, 61, 111, 125, 175, 189, 239, 253, 303, 317, 327, 335, 343, 351, 359, 375, 376, 377, 378, 379, 380, 382, 431, 445, 453, 461, 469, 477, 485, 488, 489, 490, 491, 492, 494, 501, 559, 573, 623, 637, 687, 701, 751, 765, 815, 829, 839, 847, 855, 863, 871

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

MATHEMATICA

Select[Range[900], DigitCount[#, 8, 5]==DigitCount[#, 8, 7]>0&] (* Harvey P. Dale, May 10 2024 *)

CROSSREFS

Cf. A007094.

Sequence in context: A126980 A354442 A354461 * A043178 A043958 A099591

Adjacent sequences: A039352 A039353 A039354 * A039356 A039357 A039358

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved