%I #11 Jun 26 2021 06:48:30
%S 1,2,3,4,6,7,8,9,10,12,13,14,15,17,18,19,20,21,23,24,25,26,28,29,30,
%T 31,32,34,35,36,37,39,40,41,42,43,45,46,47,48,50,51,52,53,54,55,67,68,
%U 69,70,72,73,74,75,76,78,79,80,81,83,84,85,86,87,89,90,91,92,94,95
%N Numbers whose base-11 representation has the same number of 0's and 5's.
%t Select[Range[100],DigitCount[#,11,0]==DigitCount[#,11,5]&] (* _Harvey P. Dale_, Jul 10 2020 *)
%K nonn,base,easy
%O 1,2
%A _Olivier GĂ©rard_