A317426 Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

8, 53, 75, 279, 1097, 2891, 8887, 30029, 89848, 274792, 882160, 2721361, 8383857, 26399095, 82085290, 254251923, 794713508, 2475311210, 7689325828, 23970460330, 74669710389, 232271011634, 723429518338, 2253142345374, 7012829125173

Offset

1,1

Comments

Column 5 of A317429.

Links

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

Example

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

Crossrefs

Cf. A317429.

Sequence in context: A304666 A306169 A316424 * A212754 A099622 A198846

Adjacent sequences: A317423 A317424 A317425 * A317427 A317428 A317429

Keyword

nonn

Author

R. H. Hardin, Jul 27 2018

Status

approved