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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A189603 Number of n X n array permutations with each element not moving, or moving one space E, S or NW 0
1, 3, 20, 464, 30283, 5897476, 3394457868, 5778059258273, 29117129479453520, 434446215594380010575 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A189610

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for 3X3

..4..1..2....0..1..2....4..0..2....4..0..1....4..0..2....0..1..2....4..1..2

..0..8..5....3..8..4....7..1..5....7..8..2....3..1..5....7..8..4....0..3..5

..3..6..7....6..7..5....3..6..8....3..6..5....6..7..8....3..6..5....6..7..8

CROSSREFS

Sequence in context: A203194 A322455 A138897 * A203228 A174972 A300917

Adjacent sequences:  A189600 A189601 A189602 * A189604 A189605 A189606

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 24 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 24 04:38 EDT 2019. Contains 324318 sequences. (Running on oeis4.)