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A189178 Number of n X n array permutations with each element making a single king move 0
0, 9, 192, 251720, 1339732352, 108943637068673, 76260881288534294528, 594579828469677562655346609 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A189186

LINKS

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

EXAMPLE

Some solutions for 3X3

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

..1..8..2....6..2..8....0..3..8....1..2..8....0..6..2....0..6..8....6..8..2

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

CROSSREFS

Sequence in context: A113269 A261826 A184688 * A116877 A196959 A266485

Adjacent sequences:  A189175 A189176 A189177 * A189179 A189180 A189181

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 18 2011

STATUS

approved

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Last modified December 8 11:33 EST 2016. Contains 278943 sequences.