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Numbers whose base-6 representation has the same number of 0's and 1's.
1

%I #13 Jun 20 2021 14:58:30

%S 2,3,4,5,6,14,15,16,17,20,21,22,23,26,27,28,29,32,33,34,35,38,39,40,

%T 41,48,54,60,66,73,78,86,87,88,89,92,93,94,95,98,99,100,101,104,105,

%U 106,107,109,114,122,123,124,125,128,129,130,131,134,135,136,137,140

%N Numbers whose base-6 representation has the same number of 0's and 1's.

%H Daniel Starodubtsev, <a href="/A039016/b039016.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[200],DigitCount[#,6,0]==DigitCount[#,6,1]&] (* _Harvey P. Dale_, Jun 15 2021 *)

%Y Cf. A007092.

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_