A326099 Number of nXn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 8, 161, 8628, 1233763, 463572941, 457515856087, 1187662505828132, 8109848158608706092, 145652282125715208618002, 6879822326742091298103753274

Offset: 1

Author

R. H. Hardin, Jun 06 2019

Keywords

• nonn

Comments

Diagonal of A326105.

Examples

			Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1
..1..0..1..1..1. .1..1..0..1..1. .1..0..1..0..1. .0..1..1..1..0
..1..0..0..0..1. .1..0..1..0..1. .1..1..0..1..0. .0..1..0..0..0
..1..1..0..1..0. .1..1..1..0..1. .1..0..0..1..1. .1..0..1..1..1
..1..1..0..1..0. .0..0..0..0..1. .1..1..0..1..1. .0..1..0..1..0
		

Crossrefs

Cf. A326105.