A221897 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out straight through or left turns.

28, 19408, 7235107, 2815434576, 1093046005330, 424750933848720, 164973176599593177, 64079516472337724523, 24889801648272710871176, 9667694294893797006224411, 3755123558818256978843191913

Offset: 1

Author

R. H. Hardin Jan 30 2013

Keywords

• nonn

Comments

Column 5 of A221898

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..16