%I #12 Jun 30 2021 03:57:15
%S 35,53,135,153,235,253,305,315,325,345,350,351,352,354,356,357,358,
%T 359,365,375,385,395,435,453,503,513,523,530,531,532,534,536,537,538,
%U 539,543,563,573,583,593,635,653,735,753,835,853,935,953,1035,1053
%N Numbers whose base-10 representation has the same nonzero number of 3's and 5's.
%t Select[Range[1200],DigitCount[#,10,3]==DigitCount[#,10,5]>0&] (* _Harvey P. Dale_, Jan 12 2020 *)
%K nonn,base,easy
%O 1,1
%A _Olivier GĂ©rard_