A283492 Number of nX6 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.

0, 312, 47712, 2836520, 173139952, 9816981756, 536229705204, 28589370541536, 1495349029171972, 77085183211404184, 3927954723497651964, 198272030861373733756, 9930061632056145835716, 494048861047645225914508

Offset

1,2

Comments

Column 6 of A283494.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Cf. A283494.

Sequence in context: A107508 A015704 A156406 * A112729 A308837 A239818

Adjacent sequences: A283489 A283490 A283491 * A283493 A283494 A283495

Keyword

nonn

Author

R. H. Hardin, Mar 08 2017

Status

approved