A299305 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

5, 604, 3387, 28374, 482418, 6525374, 76611604, 1041660250, 14216373088, 185641725091, 2461636096556, 32972981437712, 438191632134687, 5821100136764371, 77544942985407707, 1032213930246913442

Offset

1,1

Comments

Column 6 of A299307.

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..0..1..1..1..1. .0..0..0..1..0..0. .0..1..1..0..0..1
..0..0..0..1..1..1. .1..0..0..0..0..1. .1..0..1..1..0..1. .0..0..1..1..1..0
..1..0..0..0..0..0. .0..1..0..0..0..1. .1..1..1..1..1..1. .0..1..1..0..1..0
..1..0..1..1..1..0. .0..0..0..0..1..0. .0..0..1..1..1..0. .1..0..0..0..1..0
..0..1..1..0..0..1. .0..1..1..0..1..1. .0..0..1..0..0..1. .0..1..1..1..0..0

Crossrefs

Cf. A299307.

Sequence in context: A298768 A299565 A298387 * A299463 A300106 A283098

Adjacent sequences: A299302 A299303 A299304 * A299306 A299307 A299308

Keyword

nonn

Author

R. H. Hardin, Feb 06 2018

Status

approved