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%I #11 Jun 26 2021 09:51:12
%S 1,2,3,4,5,6,8,9,10,12,13,14,15,16,17,19,20,21,23,24,25,26,27,28,30,
%T 31,32,34,35,36,37,38,39,41,42,43,45,46,47,48,49,50,52,53,54,56,57,58,
%U 59,60,61,63,64,65,67,68,69,70,71,72,74,75,76,77,89,90,91,92,93,94
%N Numbers whose base-11 representation has the same number of 0's and 7's.
%t Select[Range[100],DigitCount[#,11,7]==DigitCount[#,11,0]&] (* _Harvey P. Dale_, Jun 06 2015 *)
%K nonn,base,easy
%O 1,2
%A _Olivier Gérard_
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