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Numbers having three 1's in base 10.
1

%I #14 Apr 24 2021 21:07:11

%S 111,1011,1101,1110,1112,1113,1114,1115,1116,1117,1118,1119,1121,1131,

%T 1141,1151,1161,1171,1181,1191,1211,1311,1411,1511,1611,1711,1811,

%U 1911,2111,3111,4111,5111,6111,7111,8111,9111,10011,10101,10110,10112,10113,10114

%N Numbers having three 1's in base 10.

%H Alois P. Heinz, <a href="/A043495/b043495.txt">Table of n, a(n) for n = 1..14580</a>

%t Select[Range[11000],DigitCount[#,10,1]==3&] (* _Harvey P. Dale_, Aug 14 2015 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_