A188980 Number of n X 6 array permutations with each element moved but moved no more than a city block distance of two.

13, 71865, 577290185, 2184414516364, 9298230791255360

Offset: 1

Author

R. H. Hardin, Apr 14 2011

Keywords

• nonn

Comments

Column 6 of A188981.

Examples

			Some solutions for 3 X 6
..1..0..3..9.10.17....1..0..3.15.10.11....1..0..3..4..9.11....1..0..3.10..9.17
..8..2.14..4.11.16....8..2..6..7.16..4....8..2..6..7..5.10....8..2.14.15.16..4
..7..6.12.13.15..5...14.12.13..9.17..5...13.12.15.14.17.16....6..7.12.13.11..5
		

Crossrefs

Cf. A188981.