A317601 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

16, 192, 1959, 20805, 218043, 2349106, 25248997, 271168201, 2915768974, 31351577334, 337064977236, 3623995204338, 38964386368829, 418932571293710, 4504230776452201, 48428144869176301, 520684753076157157

Offset

1,1

Comments

Column 5 of A317604.

Links

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

Example

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

Crossrefs

Cf. A317604.

Sequence in context: A365934 A316873 A071081 * A000767 A053539 A338100

Adjacent sequences: A317598 A317599 A317600 * A317602 A317603 A317604

Keyword

nonn

Author

R. H. Hardin, Aug 01 2018

Status

approved