A317263 Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

8, 35, 46, 158, 718, 1964, 6645, 27514, 103293, 402198, 1654388, 6799466, 27995511, 116730155, 490094651, 2057627656, 8660144838, 36566708334, 154497306529, 653082808063, 2763502483927, 11699577661484, 49540772423071

Offset

1,1

Comments

Column 5 of A317266.

Links

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

Example

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

Crossrefs

Cf. A317266.

Sequence in context: A304541 A306126 A316308 * A275360 A281147 A373484

Adjacent sequences: A317260 A317261 A317262 * A317264 A317265 A317266

Keyword

nonn

Author

R. H. Hardin, Jul 25 2018

Status

approved