A283723 Number of nX5 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

0, 242, 7839, 185564, 4096541, 85216204, 1712274593, 33562500568, 645693322870, 12245204883594, 229579628653688, 4264277726781824, 78593573780867383, 1439071472782162236, 26202481076773862619, 474782901940298647924

Offset

1,2

Comments

Column 5 of A283726.

Links

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

R. H. Hardin, Empirical recurrence of order 80

Formula

Empirical recurrence of order 80 (see link above)

Example

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

Crossrefs

Cf. A283726.

Sequence in context: A165935 A318529 A006601 * A035748 A022153 A335611

Adjacent sequences: A283720 A283721 A283722 * A283724 A283725 A283726

Keyword

nonn

Author

R. H. Hardin, Mar 15 2017

Status

approved