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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A188952 Number of n X n array permutations with each element moved no more than a city block distance of two 0
1, 24, 29172, 504690017, 229188213745576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A188958

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 3X3

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

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

..6..8..5....6..7..5....6..5..2....6..5..4....3..4..6....6..1..5....6..5..8

CROSSREFS

Sequence in context: A188961 A153303 A272095 * A258901 A062322 A100733

Adjacent sequences:  A188949 A188950 A188951 * A188953 A188954 A188955

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 14 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 23 11:29 EST 2018. Contains 299571 sequences. (Running on oeis4.)