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Numbers whose base-12 representation has the same number of 1's and 8's.
1

%I #13 Jun 26 2021 11:08:38

%S 0,2,3,4,5,6,7,9,10,11,20,24,26,27,28,29,30,31,33,34,35,36,38,39,40,

%T 41,42,43,45,46,47,48,50,51,52,53,54,55,57,58,59,60,62,63,64,65,66,67,

%U 69,70,71,72,74,75,76,77,78,79,81,82,83,84,86,87,88,89,90,91,93,94

%N Numbers whose base-12 representation has the same number of 1's and 8's.

%H G. C. Greubel, <a href="/A039226/b039226.txt">Table of n, a(n) for n = 1..5000</a>

%t Select[Range[0, 500], DigitCount[#, 12, 1] == DigitCount[#, 12, 8] &] (* _G. C. Greubel_, Nov 02 2017 *)

%K nonn,base,easy

%O 1,2

%A _Olivier GĂ©rard_