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!)
A183718 1/20 of the number of (n+1) X 9 0..4 arrays with every 2 X 2 subblock strictly increasing clockwise or counterclockwise with one decrease. 1
985, 18566, 303170, 5374440, 94463507, 1680902120, 29887741084, 532844962952, 9498797049301, 169444214222538, 3022597001362206, 53927539247910656, 962146234750661827, 17166919088214504572, 306297928172424966016 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 8 of A183719.
LINKS
EXAMPLE
Some solutions for 3 X 9:
..0..2..0..1..0..2..0..2..1....0..3..0..4..0..3..4..3..0
..4..3..4..2..4..3..4..3..0....1..2..1..2..1..2..1..2..1
..1..2..0..1..0..2..0..2..1....0..3..4..3..0..3..0..3..4
...
...R..L..R..L..R..L..R..L.......L..R..L..R..L..R..L..R...
...L..R..L..R..L..R..L..R.......R..L..R..L..R..L..R..L...
CROSSREFS
Sequence in context: A289417 A131640 A333443 * A163025 A069299 A248352
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 06 2011
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 28 16:12 EDT 2024. Contains 371254 sequences. (Running on oeis4.)