A266023 Number of nX6 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors exactly one smaller than itself.

16, 259, 1045, 19688, 336357, 4285397, 63460724, 950319651, 13831198142, 203362718849, 2996519345158, 44069974577249, 648396325752902, 9541613955300209, 140380983573276762, 2065580574184245251

Offset: 1

Author

R. H. Hardin, Dec 20 2015

Keywords

• nonn

Comments

Column 6 of A266025.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..122

Crossrefs

Cf. A266025.