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A039107 Numbers whose base-9 representation has the same number of 5's and 7's. 0
0, 1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 15, 17, 18, 19, 20, 21, 22, 24, 26, 27, 28, 29, 30, 31, 33, 35, 36, 37, 38, 39, 40, 42, 44, 52, 54, 55, 56, 57, 58, 60, 62, 68, 72, 73, 74, 75, 76, 78, 80, 81, 82, 83, 84, 85, 87, 89, 90, 91, 92, 93, 94, 96, 98, 99, 100, 101, 102 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
MATHEMATICA
Select[Range[0, 120], DigitCount[#, 9, 5]==DigitCount[#, 9, 7]&] (* Harvey P. Dale, Apr 07 2013 *)
CROSSREFS
Cf. A007095.
Sequence in context: A039255 A039196 A039147 * A317544 A047420 A039075
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved

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Last modified June 15 19:43 EDT 2024. Contains 373410 sequences. (Running on oeis4.)