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A039104 Numbers whose base-9 representation has the same number of 4's and 7's. 0

%I

%S 0,1,2,3,5,6,8,9,10,11,12,14,15,17,18,19,20,21,23,24,26,27,28,29,30,

%T 32,33,35,43,45,46,47,48,50,51,53,54,55,56,57,59,60,62,67,72,73,74,75,

%U 77,78,80,81,82,83,84,86,87,89,90,91,92,93,95,96,98,99,100,101,102

%N Numbers whose base-9 representation has the same number of 4's and 7's.

%Y Cf. A007095.

%K nonn,base,easy

%O 1,3

%A _Olivier GĂ©rard_

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Last modified May 17 04:33 EDT 2022. Contains 353730 sequences. (Running on oeis4.)