A298650 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

3, 166, 424, 1446, 5124, 18271, 62544, 215035, 739962, 2537660, 8744241, 30188614, 104165837, 359665578, 1242411171, 4292458468, 14835586385, 51288707980, 177340234374, 613288580624, 2121228689542, 7337686991133, 25384797504647

Offset

1,1

Comments

Column 5 of A298653.

Links

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

Example

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

Crossrefs

Cf. A298653.

Sequence in context: A297820 A297990 A298843 * A299604 A100908 A180449

Adjacent sequences: A298647 A298648 A298649 * A298651 A298652 A298653

Keyword

nonn

Author

R. H. Hardin, Jan 24 2018

Status

approved