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%I #14 Jun 27 2021 10:45:36
%S 0,1,2,3,4,5,6,7,8,10,12,13,14,15,16,17,18,19,20,22,24,25,26,27,28,29,
%T 30,31,32,34,36,37,38,39,40,41,42,43,44,46,48,49,50,51,52,53,54,55,56,
%U 58,60,61,62,63,64,65,66,67,68,70,72,73,74,75,76,77,78,79,80,82
%N Numbers whose base-12 representation has the same number of 9's and 11's.
%H Vincenzo Librandi, <a href="/A039273/b039273.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[0, 100], DigitCount[#, 12, 9] == DigitCount[#, 12, 11] &] (* _Vincenzo Librandi_, Oct 21 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
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