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%I
%S 4117,4165,4177,4180,4357,4369,4372,4417,4420,4432,5125,5137,5140,
%T 5185,5188,5200,5377,5380,5392,5440,16470,16471,16473,16477,16485,
%U 16501,16533,16597,16662,16663,16665,16669,16677,16693
%N Numbers n with property that in base 4 representation the numbers of 0's and 1's are 3 and 4, respectively.
%H Vincenzo Librandi, <a href="/A045032/b045032.txt">Table of n, a(n) for n = 1..2000</a>
%t Select[Range[10000], DigitCount[#, 4, 0] == 3 && DigitCount[#, 4, 1] == 4 &] (* _Vincenzo Librandi_, Sep 23 2016 *)
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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