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%I #13 Jun 25 2021 01:41:36
%S 0,1,2,3,6,7,8,9,10,11,12,15,16,17,18,19,20,21,24,25,26,27,28,29,30,
%T 33,34,35,41,49,54,55,56,57,60,61,62,63,64,65,66,69,70,71,72,73,74,75,
%U 78,79,80,81,82,83,84,87,88,89,90,91,92,93,96,97,98,99,100,101,102
%N Numbers whose base-9 representation has the same number of 4's and 5's.
%t Select[Range[0,110],DigitCount[#,9,4]==DigitCount[#,9,5]&] (* _Harvey P. Dale_, Jul 21 2013 *)
%Y Cf. A007095.
%K nonn,base,easy
%O 1,3
%A _Olivier GĂ©rard_