A298505 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

1, 104, 148, 1297, 10969, 86979, 795788, 7018070, 62968846, 567532671, 5098934357, 45959883520, 414039234751, 3730689675757, 33621338845286, 302989791010903, 2730617206932446, 24609042392789042, 221784466694541698

Offset

1,2

Comments

Column 5 of A298508.

Links

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

Example

Some solutions for n=6
..0..1..0..0..0. .0..1..1..1..1. .0..1..0..0..0. .0..1..0..1..0
..1..1..0..1..0. .0..0..1..1..0. .1..1..0..1..0. .1..1..0..0..0
..1..1..0..0..0. .0..1..1..1..1. .0..1..0..0..0. .0..1..0..0..0
..0..1..0..0..0. .0..0..0..0..0. .1..1..0..0..0. .1..1..0..1..0
..1..1..0..1..0. .1..1..0..0..1. .1..1..0..1..0. .1..1..0..1..1
..1..1..0..0..0. .1..0..0..0..0. .1..0..0..1..1. .1..0..0..1..0

Crossrefs

Cf. A298508.

Sequence in context: A260922 A054903 A074228 * A253693 A168528 A259767

Adjacent sequences: A298502 A298503 A298504 * A298506 A298507 A298508

Keyword

nonn

Author

R. H. Hardin, Jan 20 2018

Status

approved