A317033 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

16, 94, 280, 1718, 11368, 66728, 417156, 2714271, 17610616, 114357451, 754664057, 4990029946, 33020899414, 219676934231, 1462873913126, 9748125500261, 65076163909949, 434605951697906, 2903524017998302, 19410022768455530

Offset

1,1

Comments

Column 5 of A317036.

Links

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

Example

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

Crossrefs

Cf. A317036.

Sequence in context: A304344 A316215 A305639 * A294433 A160750 A305908

Adjacent sequences: A317030 A317031 A317032 * A317034 A317035 A317036

Keyword

nonn

Author

R. H. Hardin, Jul 19 2018

Status

approved