A317123 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

32, 569, 4561, 46955, 507378, 5694906, 64566869, 734571604, 8373046468, 95512011523, 1089830833984, 12436698688960, 141929215105534, 1619742780936473, 18485182531732426, 210961212697095730

Offset

1,1

Comments

Column 6 of A317125.

Links

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

Example

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

Crossrefs

Cf. A317125.

Sequence in context: A304308 A316207 A305774 * A305591 A317009 A316874

Adjacent sequences: A317120 A317121 A317122 * A317124 A317125 A317126

Keyword

nonn

Author

R. H. Hardin, Jul 21 2018

Status

approved