A266130 Number of nX7 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.

25, 2141, 11044, 347576, 16386099, 325554385, 10444421518, 364864463172, 9780785065374, 322718526988333, 10659390930051828, 315717305995251778

Offset: 1

Author

R. H. Hardin, Dec 21 2015

Keywords

• nonn

Comments

Column 7 of A266131.

Examples

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

Crossrefs

Cf. A266131.