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A031467 Numbers whose base-4 representation has 2 fewer 0's than 3's. 0

%I #9 Jul 04 2021 15:55:35

%S 15,31,47,55,59,61,62,95,111,119,123,125,126,159,175,183,187,189,190,

%T 207,215,219,221,222,231,235,237,238,243,245,246,249,250,252,319,351,

%U 367,375,379,381,382,415,431,439,443,445,446

%N Numbers whose base-4 representation has 2 fewer 0's than 3's.

%t Select[Range[500],DigitCount[#,4,0]==DigitCount[#,4,3]-2&] (* _Harvey P. Dale_, Oct 08 2020 *)

%Y Cf. A007090.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified March 29 06:44 EDT 2024. Contains 371265 sequences. (Running on oeis4.)