A043641 Numbers whose base-10 representation has exactly 5 runs.

10101, 10102, 10103, 10104, 10105, 10106, 10107, 10108, 10109, 10120, 10121, 10123, 10124, 10125, 10126, 10127, 10128, 10129, 10130, 10131, 10132, 10134, 10135, 10136, 10137, 10138, 10139, 10140, 10141, 10142

Offset

1,1

Links

Table of n, a(n) for n=1..30.

Mathematica

Select[Range[11000], Length[Split[IntegerDigits[#]]]==5&] (* Harvey P. Dale, Nov 20 2023 *)

Crossrefs

Sequence in context: A193241 A265122 A267146 * A210890 A210892 A258189

Adjacent sequences: A043638 A043639 A043640 * A043642 A043643 A043644

Keyword

nonn,base

Author

Clark Kimberling

Status

approved