login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A207533 Number of nX6 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column 0
2902, 8421604, 14111752738, 26097329476130, 47621224240269788, 87012971830189045874 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A207535

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

..2..2..1..0..0..3....2..2..0..1..2..3....0..1..1..3..2..2....3..1..3..0..1..1

..0..0..1..1..1..3....2..0..1..2..2..1....1..2..2..1..3..2....1..3..2..0..1..3

..3..3..2..1..1..2....1..0..2..2..3..3....1..3..3..0..1..3....2..2..1..1..3..2

..1..1..3..1..0..0....1..2..0..2..3..1....2..1..1..2..2..1....0..1..1..3..3..1

CROSSREFS

Sequence in context: A252267 A207281 A207477 * A054828 A153412 A186819

Adjacent sequences:  A207530 A207531 A207532 * A207534 A207535 A207536

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 14 22:42 EST 2019. Contains 329987 sequences. (Running on oeis4.)