A316453 Number of nX6 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

5, 165, 126, 850, 6590, 53863, 349456, 3164734, 29901503, 233629632, 2117673535, 19376027632, 163168539302, 1462088319752, 13094549113176, 113492172044489, 1009770426097931, 8965119037406289, 78598641433871178, 696747258953751961

Offset

1,1

Comments

Column 6 of A316455.

Links

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

Example

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

Crossrefs

Cf. A316455.

Sequence in context: A304056 A305450 A304702 * A305013 A316646 A316174

Adjacent sequences: A316450 A316451 A316452 * A316454 A316455 A316456

Keyword

nonn

Author

R. H. Hardin, Jul 03 2018

Status

approved