A316542 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

16, 64, 187, 568, 4219, 19819, 85583, 452386, 2248258, 10683960, 53021058, 262380806, 1279454090, 6288355637, 30965350526, 151903390611, 745956024380, 3666614206098, 18007858418196, 88444652958379, 434517915090590

Offset

1,1

Comments

Column 5 of A316545.

Links

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

Example

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

Crossrefs

Cf. A316545.

Sequence in context: A100184 A304845 A190099 * A306057 A059165 A212506

Adjacent sequences: A316539 A316540 A316541 * A316543 A316544 A316545

Keyword

nonn

Author

R. H. Hardin, Jul 06 2018

Status

approved