A189347 Number of n X n array permutations with each element moving one space diagonally, horizontally or vertically.

0, 4, 48, 12592, 10252800, 64731638400, 2239546267804672, 494966160398383884544, 658664151315274081588459520, 5410532537689878793764236394523648, 271891121107496085701096037929377481809920

Offset: 1

Author

R. H. Hardin, Apr 20 2011

Keywords

• nonn
• more

Examples

			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

Diagonal of A189355.

Extensions

a(9)-a(11) from Pontus von Brömssen, Aug 28 2024