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A039225 Numbers n whose base-12 representation has the same number of 1's and 7's. 1

%I

%S 0,2,3,4,5,6,8,9,10,11,19,24,26,27,28,29,30,32,33,34,35,36,38,39,40,

%T 41,42,44,45,46,47,48,50,51,52,53,54,56,57,58,59,60,62,63,64,65,66,68,

%U 69,70,71,72,74,75,76,77,78,80,81,82,83,85,96,98,99,100,101,102,104

%N Numbers n whose base-12 representation has the same number of 1's and 7's.

%H G. C. Greubel, <a href="/A039225/b039225.txt">Table of n, a(n) for n = 1..5000</a>

%t Select[Range[0,200],DigitCount[#,12,1]==DigitCount[#,12,7]&] (* _Harvey P. Dale_, Aug 10 2013 *)

%K nonn,base,easy

%O 1,2

%A _Olivier GĂ©rard_

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Last modified April 5 17:03 EDT 2020. Contains 333245 sequences. (Running on oeis4.)