A039221 Numbers whose base-12 representation has the same number of 1's and 3's.

0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 15, 24, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 76, 77, 78, 79, 80, 81, 82, 83, 84, 86, 88, 89, 90, 91, 92, 93, 94, 95, 96, 98, 100, 101, 102, 103, 104

Offset

1,2

Links

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

Mathematica

Select[Range[0, 200], DigitCount[#, 12, 1]==DigitCount[#, 12, 3]&] (* Harvey P. Dale, Feb 25 2015 *)

Crossrefs

Sequence in context: A235498 A052405 A039212 * A183297 A047573 A374486

Adjacent sequences: A039218 A039219 A039220 * A039222 A039223 A039224

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved