A317433 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

3, 120, 863, 6964, 67214, 594763, 5282805, 47791350, 429692708, 3861344768, 34739029832, 312498732279, 2810567227167, 25279728597556, 227386489932695, 2045235955088251, 18396023271916165, 165465426316854254

Offset

1,1

Comments

Column 5 of A317436.

Links

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

Example

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

Crossrefs

Cf. A317436.

Sequence in context: A304694 A316445 A316127 * A214312 A343831 A185554

Adjacent sequences: A317430 A317431 A317432 * A317434 A317435 A317436

Keyword

nonn

Author

R. H. Hardin, Jul 27 2018

Status

approved