login
A043622
Numbers whose base-7 representation has exactly 7 runs.
0
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
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
KEYWORD
nonn,base
STATUS
approved