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A039100 Numbers n such that representation in base 9 has same number of 3's and 7's. 0

%I

%S 0,1,2,4,5,6,8,9,10,11,13,14,15,17,18,19,20,22,23,24,26,34,36,37,38,

%T 40,41,42,44,45,46,47,49,50,51,53,54,55,56,58,59,60,62,66,72,73,74,76,

%U 77,78,80,81,82,83,85,86,87,89,90,91,92,94,95,96,98,99,100,101,103

%N Numbers n such that representation in base 9 has same number of 3's and 7's.

%t Select[Range[0,200],DigitCount[#,9,3]==DigitCount[#,9,7]&] (* _Harvey P. Dale_, Dec 05 2012 *)

%K nonn,base,easy

%O 1,3

%A _Olivier GĂ©rard_

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Last modified July 23 22:49 EDT 2019. Contains 325278 sequences. (Running on oeis4.)