A293094 Number of n X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

0, 0, 48, 8088, 3125547, 5589631828, 38469698642410, 1110306381675662688

Offset: 1

Author

R. H. Hardin, Sep 30 2017

Keywords

• nonn

Comments

Diagonal of A293100.

Examples

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

Crossrefs

Cf. A293100.