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

Author

R. H. Hardin Apr 22 2011

Keywords

• nonn

Comments

Row 5 of A189449

Examples

			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
		

Links

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