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%I #16 Jun 30 2021 04:31:43
%S 62,82,183,203,304,324,425,445,546,566,612,623,634,645,656,678,682,
%T 683,684,685,686,688,690,691,692,700,711,722,788,808,852,863,874,885,
%U 896,902,903,904,905,906,908,910,911,912,918,940,951,962,1030,1050
%N Numbers whose base-11 representation has the same nonzero number of 5's and 7's.
%t Select[Range[1100],DigitCount[#,11,5]==DigitCount[#,11,7]>0&] (* _Harvey P. Dale_, Jun 14 2011 *)
%K nonn,base,easy
%O 1,1
%A _Olivier Gérard_