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%I #13 Jun 25 2021 01:43:35
%S 1,2,3,5,6,7,8,10,11,12,14,15,16,17,19,20,21,23,24,25,26,28,29,30,32,
%T 33,34,35,36,46,47,48,50,51,52,53,55,56,57,59,60,61,62,64,65,66,68,69,
%U 70,71,73,74,75,77,78,79,80,85,91,92,93,95,96,97,98,100,101,102,104
%N Numbers whose base-9 representation has the same number of 0's and 4's.
%t Select[Range[150],DigitCount[#,9,0]==DigitCount[#,9,4]&] (* _Harvey P. Dale_, Sep 05 2013 *)
%Y Cf. A007095.
%K nonn,base,easy
%O 1,2
%A _Olivier GĂ©rard_