A043494 - OEIS

%I #16 Apr 24 2021 21:07:42

%S 11,101,110,112,113,114,115,116,117,118,119,121,131,141,151,161,171,

%T 181,191,211,311,411,511,611,711,811,911,1001,1010,1012,1013,1014,

%U 1015,1016,1017,1018,1019,1021,1031,1041,1051,1061,1071

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

%H Daniel Starodubtsev, <a href="/A043494/b043494.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[1100],DigitCount[#,10,1]==2&] (* _Harvey P. Dale_, Nov 30 2013 *)

%Y Subsequence of A011531.

%K nonn,base

%O 1,1

%A _Clark Kimberling_