A221252 Number of nX5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

8, 392, 22268, 1319409, 78633756, 4684821704, 278802326676, 16577412686597, 985111139474492, 58519095228020616, 3475483474225610814, 206383882956736627050, 12254681900155763390448, 727625190336114167472388

Offset: 1

Author

R. H. Hardin Jan 06 2013

Keywords

• nonn

Comments

Column 5 of A221255

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..43