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%I #13 May 10 2024 21:53:55
%S 47,61,111,125,175,189,239,253,303,317,327,335,343,351,359,375,376,
%T 377,378,379,380,382,431,445,453,461,469,477,485,488,489,490,491,492,
%U 494,501,559,573,623,637,687,701,751,765,815,829,839,847,855,863,871
%N Numbers whose base-8 representation has the same nonzero number of 5's and 7's.
%t Select[Range[900],DigitCount[#,8,5]==DigitCount[#,8,7]>0&] (* _Harvey P. Dale_, May 10 2024 *)
%Y Cf. A007094.
%K nonn,base,easy
%O 1,1
%A _Olivier Gérard_