A189432 Number of nX6 array permutations with each element not moving, or moving one space N, SW or SE

1, 13, 181, 2413, 40065, 606201, 9557077, 150278792, 2367212857, 37358187521, 589449930573, 9305507958493, 146913309982185, 2319624020512093, 36626205645266813, 578327113990185529, 9131891816444663056

Offset

1,2

Comments

Column 6 of A189435

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 3X6
..6..1..2..9.10..5....6..7..2..3.10.11....6..7..8..3..4..5....0..7..8..9.10.11
.12..0..8..4..3.11....1..0..8..9..5..4....1..0.14..2.10.11....1.13..3..2..5..4
..7.13.14.15.16.17...12.13.14.15.16.17...12.13..9.15.16.17...12..6.14.15.16.17

Crossrefs

Sequence in context: A142646 A201607 A083576 * A001570 A122571 A239902

Adjacent sequences: A189429 A189430 A189431 * A189433 A189434 A189435

Keyword

nonn

Author

R. H. Hardin Apr 22 2011

Status

approved