A039100 Numbers whose base-9 representation has the same number of 3's and 7's.

0, 1, 2, 4, 5, 6, 8, 9, 10, 11, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 26, 34, 36, 37, 38, 40, 41, 42, 44, 45, 46, 47, 49, 50, 51, 53, 54, 55, 56, 58, 59, 60, 62, 66, 72, 73, 74, 76, 77, 78, 80, 81, 82, 83, 85, 86, 87, 89, 90, 91, 92, 94, 95, 96, 98, 99, 100, 101, 103

Offset

1,3

Links

Table of n, a(n) for n=1..69.

Mathematica

Select[Range[0, 200], DigitCount[#, 9, 3]==DigitCount[#, 9, 7]&] (* Harvey P. Dale, Dec 05 2012 *)

Crossrefs

Cf. A007095.

Sequence in context: A030124 A064318 A286924 * A184482 A141204 A160992

Adjacent sequences: A039097 A039098 A039099 * A039101 A039102 A039103

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved