A266024 Number of nX7 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors exactly one smaller than itself.

25, 719, 3394, 110924, 3254726, 63460724, 1577145547, 38948760562, 916245375526, 22100022039548, 535029907435345, 12865137927698631

Offset: 1

Author

R. H. Hardin, Dec 20 2015

Keywords

• nonn

Comments

Column 7 of A266025.

Examples

			Some solutions for n=4
..1..0..1..1..0..0..0....1..2..1..2..0..2..0....1..2..2..1..2..1..0
..1..2..2..3..2..2..0....0..0..1..2..1..1..1....0..1..2..0..2..2..1
..2..0..2..1..1..1..2....0..2..2..3..2..2..2....2..3..2..1..3..2..1
..1..1..2..0..1..1..0....1..2..1..0..0..0..1....1..0..1..1..0..0..1
		

Crossrefs

Cf. A266025.