A043622 Numbers whose base-7 representation has exactly 7 runs.

120100, 120101, 120102, 120103, 120104, 120105, 120113, 120114, 120116, 120117, 120118, 120119, 120120, 120121, 120122, 120124, 120125, 120126, 120127, 120128, 120129, 120130, 120132, 120133, 120134, 120135, 120136

Offset

1,1

Links

Table of n, a(n) for n=1..27.

Mathematica

Select[Range[121000], Length[Split[IntegerDigits[#, 7]]]==7&] (* Harvey P. Dale, Jun 29 2015 *)

Crossrefs

Cf. A007093.

Sequence in context: A031664 A234736 A236094 * A272597 A190378 A092015

Adjacent sequences: A043619 A043620 A043621 * A043623 A043624 A043625

Keyword

nonn,base

Author

Clark Kimberling

Status

approved