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Numbers whose base-3 representation contains exactly four 0's and four 1's.
0

%I #10 Jul 25 2023 22:27:10

%S 2200,2218,2224,2226,2272,2278,2280,2296,2298,2304,2434,2440,2442,

%T 2458,2460,2466,2512,2514,2520,2538,2920,2926,2928,2944,2946,2952,

%U 2998,3000,3006,3024,3160,3162,3168,3186,3240,6602

%N Numbers whose base-3 representation contains exactly four 0's and four 1's.

%t Select[Range[7000],DigitCount[#,3,0]==DigitCount[#,3,1]==4&] (* _Harvey P. Dale_, Dec 16 2019 *)

%Y Cf. A007089.

%K nonn,base

%O 1,1

%A _Clark Kimberling_