login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A215399 Number of length-n 0..6 arrays connected end-around, with no sequence of L<n elements immediately followed by itself (periodic "squarefree"), and new values introduced in order 0..6. 0
1, 1, 1, 3, 6, 27, 99, 462, 2205, 11414, 61028, 337089, 1894854, 10794718, 61989059, 357903580, 2073376576, 12037807836 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
Column 6 of A215401.
LINKS
EXAMPLE
Some solutions for n=9:
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
..2....2....2....2....2....2....2....2....2....2....2....2....2....2....2....2
..3....3....3....3....3....3....1....1....1....3....1....1....3....3....3....3
..4....4....4....4....2....4....3....3....3....4....3....3....4....0....1....4
..0....1....5....0....4....1....4....2....4....2....4....1....2....1....2....0
..2....2....0....2....1....5....0....4....3....0....0....4....4....3....4....5
..1....5....4....4....0....4....5....3....1....3....3....0....3....4....5....4
..3....3....6....3....4....5....4....5....4....5....1....5....4....5....1....6
CROSSREFS
Sequence in context: A023169 A083695 A215398 * A215400 A215394 A222625
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 09 2012
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 2 04:27 EST 2024. Contains 370460 sequences. (Running on oeis4.)