A221325 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

41, 6328, 1010078, 162430981, 26135748494, 4205264399891, 676612123702617, 108863121975329470, 17515379016294357354, 2818106397041464685615, 453413942381102088419081, 72951161699753445110986111

Offset: 1

Author

R. H. Hardin Jan 11 2013

Keywords

• nonn

Comments

Column 5 of A221328

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..77