A043494 Numbers having two 1's in base 10.

11, 101, 110, 112, 113, 114, 115, 116, 117, 118, 119, 121, 131, 141, 151, 161, 171, 181, 191, 211, 311, 411, 511, 611, 711, 811, 911, 1001, 1010, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1021, 1031, 1041, 1051, 1061, 1071

Offset

1,1

Links

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Mathematica

Select[Range[1100], DigitCount[#, 10, 1]==2&] (* Harvey P. Dale, Nov 30 2013 *)

Crossrefs

Subsequence of A011531.

Sequence in context: A175963 A359610 A239236 * A277959 A278937 A038444

Adjacent sequences: A043491 A043492 A043493 * A043495 A043496 A043497

Keyword

nonn,base

Author

Clark Kimberling

Status

approved