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Numbers whose base-9 representation has the same number of 4's and 6's.
0

%I #13 Jun 25 2021 01:41:39

%S 0,1,2,3,5,7,8,9,10,11,12,14,16,17,18,19,20,21,23,25,26,27,28,29,30,

%T 32,34,35,42,45,46,47,48,50,52,53,58,63,64,65,66,68,70,71,72,73,74,75,

%U 77,79,80,81,82,83,84,86,88,89,90,91,92,93,95,97,98,99,100,101,102

%N Numbers whose base-9 representation has the same number of 4's and 6's.

%t Select[Range[0,110],DigitCount[#,9,4]==DigitCount[#,9,6]&] (* _Harvey P. Dale_, Apr 27 2018 *)

%Y Cf. A007095.

%K nonn,base,easy

%O 1,3

%A _Olivier GĂ©rard_