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Numbers whose base-9 representation has the same nonzero number of 3's and 5's.
0

%I #13 Jun 30 2021 01:54:18

%S 32,48,113,129,194,210,248,257,266,284,288,289,290,292,294,295,296,

%T 302,311,320,356,372,408,417,426,432,433,434,436,438,439,440,444,462,

%U 471,480,518,534,599,615,680,696,761,777,842,858,923,939,977,986,995

%N Numbers whose base-9 representation has the same nonzero number of 3's and 5's.

%t Select[Range[1000],DigitCount[#,9,3]==DigitCount[#,9,5]>0&] (* _Harvey P. Dale_, Jan 10 2021 *)

%Y Cf. A007095.

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_