A039227 Numbers whose base-12 representation has the same number of 1's and 9's.

0, 2, 3, 4, 5, 6, 7, 8, 10, 11, 21, 24, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60, 62, 63, 64, 65, 66, 67, 68, 70, 71, 72, 74, 75, 76, 77, 78, 79, 80, 82, 83, 84, 86, 87, 88, 89, 90, 91, 92, 94

Offset

1,2

Links

G. C. Greubel, Table of n, a(n) for n = 1..5000

Mathematica

Select[Range[0, 100], DigitCount[#, 12, 1]==DigitCount[#, 12, 9]&] (* Harvey P. Dale, Jun 21 2011 *)

Crossrefs

Sequence in context: A011871 A229769 A130676 * A257727 A039273 A039164

Adjacent sequences: A039224 A039225 A039226 * A039228 A039229 A039230

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved