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%I #11 Nov 21 2021 11:59:25
%S 0,1,2,3,4,5,6,7,8,9,12,13,14,15,16,17,18,19,20,21,24,25,26,27,28,29,
%T 30,31,32,33,36,37,38,39,40,41,42,43,44,45,48,49,50,51,52,53,54,55,56,
%U 57,60,61,62,63,64,65,66,67,68,69,72,73,74,75,76,77,78,79,80,81
%N Numbers whose base-12 representation has the same number of 10's and 11's.
%t Select[Range[0,100],DigitCount[#,12,10]==DigitCount[#,12,11]&] (* _Harvey P. Dale_, Nov 21 2021 *)
%K nonn,base,easy
%O 1,3
%A _Olivier Gérard_