A039219 - OEIS

%I #15 Jun 26 2021 15:47:54

%S 1,2,3,4,5,6,7,8,9,11,13,14,15,16,17,18,19,20,21,23,25,26,27,28,29,30,

%T 31,32,33,35,37,38,39,40,41,42,43,44,45,47,49,50,51,52,53,54,55,56,57,

%U 59,61,62,63,64,65,66,67,68,69,71,73,74,75,76,77,78,79,80,81,83

%N Numbers whose base-12 representation has the same number of 0's and 10's.

%H Vincenzo Librandi, <a href="/A039219/b039219.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Range[0, 200], DigitCount[#, 12, 0] == DigitCount[#, 12, 10] &] (* _Vincenzo Librandi_, Oct 20 2012 *)

%K nonn,base,easy

%O 1,2

%A _Olivier Gérard_

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