A317563 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

32, 2048, 81814, 3218063, 127754533, 5059110002, 200422637482, 7940287015341, 314559200160931, 12461762598192769, 493688972647641526, 19558163811377655217, 774823377682546232400, 30695684157405509836572

Offset

1,1

Comments

Column 6 of A317565.

Links

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

Example

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

Crossrefs

Cf. A317565.

Sequence in context: A320369 A298968 A299738 * A302739 A299659 A300213

Adjacent sequences: A317560 A317561 A317562 * A317564 A317565 A317566

Keyword

nonn

Author

R. H. Hardin, Jul 31 2018

Status

approved