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%I #12 Nov 14 2024 15:16:23
%S 0,2,3,5,6,7,8,9,14,20,22,23,25,26,27,28,29,30,32,33,35,36,37,38,39,
%T 41,50,52,53,55,56,57,58,59,60,62,63,65,66,67,68,69,70,72,73,75,76,77,
%U 78,79,80,82,83,85,86,87,88,89,90,92,93,95,96,97,98,99,104,124,134
%N Numbers whose base-10 representation has the same number of 1's and 4's.
%t Select[Range[0,150],DigitCount[#,10,1]==DigitCount[#,10,4]&] (* _Harvey P. Dale_, Nov 14 2024 *)
%K nonn,base,easy
%O 1,2
%A _Olivier GĂ©rard_