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A045027 Numbers n with property that in base 4 representation the numbers of 0's and 1's are 2 and 4, respectively. 1

%I

%S 1045,1093,1105,1108,1285,1297,1300,1345,1348,1360,4182,4183,4185,

%T 4189,4197,4213,4245,4309,4374,4375,4377,4381,4389,4405,4422,4423,

%U 4425,4429,4434,4435,4440,4444,4449,4452,4465,4468

%N Numbers n with property that in base 4 representation the numbers of 0's and 1's are 2 and 4, respectively.

%H Vincenzo Librandi, <a href="/A045027/b045027.txt">Table of n, a(n) for n = 1..4300</a>

%t Select[Range[10000], DigitCount[#, 4, 0] == 2 && DigitCount[#, 4, 1] == 4 &] (* _Vincenzo Librandi_, Sep 22 2016 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified October 26 22:19 EDT 2021. Contains 348269 sequences. (Running on oeis4.)