A317002 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

32, 1576, 26952, 551591, 11158663, 223714229, 4522081307, 91395911298, 1845641069555, 37298623188716, 753693898789280, 15229455120282527, 307749321248182758, 6218778281436089176, 125664631586446141764

Offset

1,1

Comments

Column 6 of A317004.

Links

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

Example

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

Crossrefs

Cf. A317004.

Sequence in context: A305767 A317116 A305528 * A316820 A317570 A240459

Adjacent sequences: A316999 A317000 A317001 * A317003 A317004 A317005

Keyword

nonn

Author

R. H. Hardin, Jul 18 2018

Status

approved