A045005 - OEIS

%I #11 May 29 2023 00:07:34

%S 54,83,87,99,135,163,165,171,189,248,250,254,258,262,264,272,276,288,

%T 298,300,306,326,330,342,378,406,408,414,432,490,496,498,514,516,522,

%U 568,570,576,594,743,745,751,761,763,767,771

%N Numbers whose base-3 representation contains exactly three 0's and one 2.

%t Select[Range[1000],DigitCount[#,3,0]==3&&DigitCount[#,3,2]==1&]  (* _Harvey P. Dale_, Mar 27 2011 *)

%Y Cf. A007089.

%K nonn,base

%O 1,1

%A _Clark Kimberling_