A218758 Unmatched value maps: number of n X n binary arrays indicating the locations of corresponding elements not equal to any horizontal or vertical neighbor in a random 0..1 n X n array.

1, 6, 90, 2942, 280850, 70915451, 48186998294, 87678602579068

Offset: 1

Author

R. H. Hardin Nov 05 2012

Keywords

• nonn

Comments

Diagonal of A218765

Examples

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