A266099 Number of nX6 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.

16, 233, 3846, 52171, 841668, 12401485, 192212829, 2895851074, 44366390231, 672954998752, 10269568494478, 156143709545549, 2379379735679900, 36209116313028044, 551475236102985343, 8394994559793315602

Offset: 1

Author

R. H. Hardin, Dec 21 2015

Keywords

• nonn

Comments

Column 6 of A266101.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 72

Crossrefs

Cf. A266101.

Formula

Empirical recurrence of order 72 (see link above)