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A189347 Number of n X n array permutations with each element moving one space diagonally, horizontally or vertically. 0
0, 4, 48, 12592, 10252800, 64731638400, 2239546267804672, 494966160398383884544 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A189355.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for 3 X 3

..1..2..5....4..0..1....1..2..5....4..2..1....3..2..1....3..0..5....1..0..5

..0..8..4....6..3..2....7..0..8....0..5..8....4..0..8....6..1..2....6..8..2

..3..6..7....7..8..5....3..6..4....3..6..7....7..6..5....7..8..4....3..4..7

CROSSREFS

Cf. A189355.

Sequence in context: A264265 A132510 A058311 * A248558 A198384 A136196

Adjacent sequences: A189344 A189345 A189346 * A189348 A189349 A189350

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 20 2011

STATUS

approved

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Last modified December 8 01:12 EST 2022. Contains 358672 sequences. (Running on oeis4.)