A039215 Numbers whose base-12 representation has the same number of 0's and 6's.

1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 85, 86, 87, 88, 89, 91, 92, 93, 94

Offset

1,2

Links

Table of n, a(n) for n=1..70.

Mathematica

Select[Range[200], DigitCount[#, 12, 6] == DigitCount[#, 12, 0]&] (* Vincenzo Librandi, Oct 26 2016 *)

Prog

(Magma) [n: n in [1..120] | Multiplicity(S, 0) eq Multiplicity(S, 6) where S is {*d: d in Intseq(n, 12)*}]; // Vincenzo Librandi, Oct 26 2016

Crossrefs

Sequence in context: A184522 A194386 A187390 * A047253 A248910 A254278

Adjacent sequences: A039212 A039213 A039214 * A039216 A039217 A039218

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved