A221332 Number of 5Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

1, 3363, 571358, 131347807, 26135748494, 5264460642473, 1043094530574190, 206296461646686083, 40696390245562531399, 8021014977002231894704, 1580039716596918034100062, 311140535645141827979564485

Offset: 1

Author

R. H. Hardin Jan 11 2013

Keywords

• nonn

Comments

Row 5 of A221328

Examples

			Some solutions for n=3
..0..1..2....0..1..1....0..1..2....0..1..2....0..2..0....0..2..0....0..1..2
..2..2..0....1..2..0....0..1..1....2..0..1....1..2..2....1..2..0....2..1..0
..0..0..1....1..1..1....1..2..1....1..0..2....0..1..1....2..1..1....2..0..0
..1..1..2....1..2..2....2..1..1....1..0..1....0..1..0....1..0..2....0..2..1
..2..0..1....0..0..2....0..1..1....2..2..0....1..2..2....2..1..0....2..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..13