%I #18 Sep 08 2022 08:44:53

%S 0,1,2,3,4,5,7,9,10,11,12,13,14,15,16,17,19,21,22,23,24,25,26,27,28,

%T 29,31,33,34,35,36,37,38,39,40,41,43,45,46,47,48,49,50,51,52,53,55,57,

%U 58,59,60,61,62,63,64,65,67,69,70,71,80,84,85,86,87,88,89,91

%N Numbers whose base-12 representation has the same number of 6's and 8's.

%H Vincenzo Librandi, <a href="/A039261/b039261.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Range[0, 100], DigitCount[#, 12, 6] == DigitCount[#, 12, 8] &] (* _Vincenzo Librandi_, Oct 20 2012 *)

%o (Magma) [n: n in [0..100] | Multiplicity(S,6) eq Multiplicity(S,8) where S is {*d: d in Intseq(n,12)*}]; // _Bruno Berselli_, Oct 20 2012

%K nonn,base,easy

%O 1,3

%A _Olivier Gérard_

%E An incorrect g.f. was deleted by _N. J. A. Sloane_, Sep 13 2009