A189453 Number of 5Xn array permutations with each element moving zero or one space horizontally or diagonally

1, 89, 2000, 80282, 2735828, 100047288, 3586575040, 129699382789, 4679106263313, 168988854344569, 6101461090647052, 220326773309617717, 7955866427871519329, 287286109553012636665, 10373859878107656627776, 374599289123263236521340

Offset

1,2

Comments

Row 5 of A189449

Links

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

Example

Some solutions for 5X3
..1..5..2....0..5..2....0..2..1....0..1..2....1..5..2....0..5..2....0..2..1
..3..0..4....4..3..1....7..8..5....7..5..4....3..0..4....4..3..1....3..4..5
..7..6..8....7..6..8....6..3..4...10..3..8....6..8..7....7.11..8...10..7..8
..9.11.10...10..9.11...13.11.10....9..6.11...10.14.11...13..6.10....9..6.11
.12.14.13...12.14.13...12..9.14...12.13.14...12..9.13...12..9.14...13.12.14

Crossrefs

Sequence in context: A105719 A201091 A054680 * A197362 A232321 A264161

Adjacent sequences: A189450 A189451 A189452 * A189454 A189455 A189456

Keyword

nonn

Author

R. H. Hardin Apr 22 2011

Status

approved