A189148 Number of nX5 array permutations with each element making zero or one knight moves

1, 36, 4372, 602565, 46350185, 5025299720, 585494657168, 64669361584729

Offset

1,2

Comments

Column 5 of A189150

Links

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

Example

Some solutions for 3X5
..7..8..5.12.13....0.12..5.14.13....7.10..2.14..4....0..8.11..6..7
..2..6.14.11..9....2..6.10.11..9...12.13..0.11..9....5.13.14..1.12
.10..0..1..4..3....1..8..3..4..7....1..8..5..6..3...10..2..9..4..3

Crossrefs

Sequence in context: A075415 A127856 A127860 * A270506 A299698 A203752

Adjacent sequences: A189145 A189146 A189147 * A189149 A189150 A189151

Keyword

nonn

Author

R. H. Hardin Apr 17 2011

Status

approved