A305766 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

16, 420, 3282, 34001, 332676, 3343997, 33584061, 336821283, 3382396016, 33941996307, 340704391208, 3419646805848, 34323402939771, 344510126758213, 3457888799166168, 34707358045215324, 348362554693973944

Offset

1,1

Comments

Column 5 of A305769.

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

Crossrefs

Cf. A305769.

Sequence in context: A143039 A281952 A316180 * A317115 A305527 A317001

Adjacent sequences: A305763 A305764 A305765 * A305767 A305768 A305769

Keyword

nonn

Author

R. H. Hardin, Jun 10 2018

Status

approved