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%I #13 Jun 26 2021 01:52:25
%S 0,1,2,3,4,6,8,9,10,11,12,13,14,16,18,19,20,21,22,23,24,26,28,29,30,
%T 31,32,33,34,36,38,39,40,41,42,43,44,46,48,49,57,60,61,62,63,64,66,68,
%U 69,75,80,81,82,83,84,86,88,89,90,91,92,93,94,96,98,99,100,101,102
%N Numbers whose base-10 representation has the same number of 5's and 7's.
%t Select[Range[0,110],DigitCount[#,10,5]==DigitCount[#,10,7]&] (* _Harvey P. Dale_, Jul 26 2011 *)
%K nonn,base,easy
%O 1,3
%A _Olivier Gérard_
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