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Numbers whose base-4 representation contains exactly three 0's and two 2's.
0

%I #10 May 27 2023 20:37:00

%S 514,520,544,640,1034,1058,1064,1154,1160,1184,1538,1544,1568,1664,

%T 2054,2057,2059,2062,2066,2072,2081,2083,2084,2092,2098,2104,2114,

%U 2120,2144,2177,2179,2180,2188,2192,2224,2242,2248

%N Numbers whose base-4 representation contains exactly three 0's and two 2's.

%t Select[Range[2400],DigitCount[#,4,0]==3&&DigitCount[#,4,2]==2&] (* _Harvey P. Dale_, Jul 03 2017 *)

%Y Cf. A007090.

%K nonn,base

%O 1,1

%A _Clark Kimberling_