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A189246 Number of n X n array permutations with each element making zero or one king moves 0
1, 24, 2961, 7396009, 194762146816, 71437033921822425, 330453235652954061843137, 20019535342827950668977079681024 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A189254

LINKS

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

EXAMPLE

Some solutions for 3X3

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

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

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

CROSSREFS

Sequence in context: A090444 A205795 A222852 * A001512 A217574 A272179

Adjacent sequences:  A189243 A189244 A189245 * A189247 A189248 A189249

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 19 2011

STATUS

approved

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Last modified June 20 10:13 EDT 2019. Contains 324234 sequences. (Running on oeis4.)