A221124 Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.

144, 185164, 229006550, 282454178707, 348270153038959, 429398881440049645, 529420758866821620887

Offset: 1

Author

R. H. Hardin Jan 02 2013

Keywords

• nonn

Comments

Column 6 of A221125

Examples

			Some solutions for n=3
..0..1..1..1..4..1....0..1..1..0..2..2....0..1..1..2..1..0....0..1..1..0..3..0
..0..3..1..1..0..1....0..3..1..2..0..2....0..3..3..2..0..0....0..3..3..3..1..0
..0..0..2..0..0..2....0..0..1..1..2..0....0..0..2..0..3..0....0..0..0..1..2..0