A316207 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

32, 569, 3619, 28597, 232633, 1962143, 16731864, 143845449, 1242037097, 10749263182, 93154203498, 807859244428, 7008679573036, 60817775727212, 527807975968872, 4580888913355561, 39759348461098096, 345094003150465994

Offset

1,1

Comments

Column 6 of A316209.

Links

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

Example

Some solutions for n=5
..0..1..1..1..1..1. .0..1..1..0..0..1. .0..0..1..0..0..0. .0..0..0..1..0..1
..0..1..1..1..0..1. .1..1..1..1..0..0. .0..0..0..0..1..0. .1..0..1..1..1..1
..0..1..1..1..1..1. .0..1..1..0..0..0. .0..0..0..0..0..0. .0..0..0..1..1..0
..0..0..0..1..1..1. .1..1..0..0..0..1. .1..0..0..1..0..0. .0..0..1..1..1..1
..1..0..0..1..1..1. .0..1..1..0..1..1. .0..0..0..0..0..1. .0..0..0..1..1..1

Crossrefs

Cf. A316209.

Sequence in context: A022660 A220631 A304308 * A305774 A317123 A305591

Adjacent sequences: A316204 A316205 A316206 * A316208 A316209 A316210

Keyword

nonn

Author

R. H. Hardin, Jun 26 2018

Status

approved