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%I #12 Jul 01 2021 16:39:27
%S 43,223,253,258,260,261,262,263,265,271,277,283,295,331,367,403,475,
%T 691,907,1123,1303,1333,1338,1340,1341,1342,1343,1345,1351,1357,1363,
%U 1375,1411,1447,1483,1513,1518,1520,1521,1522,1523
%N Numbers having three 1's in base 6.
%t Select[Range[2000],DigitCount[#,6,1]==3&] (* _Harvey P. Dale_, Jul 01 2021 *)
%Y Cf. A007092.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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