A316543 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

32, 184, 484, 1874, 19819, 114514, 674392, 4849500, 31884846, 203368711, 1358843897, 8997328787, 58814614929, 388028648160, 2561486904197, 16848249104677, 110978791667002, 731504878546755, 4817677477871389

Offset

1,1

Comments

Column 6 of A316545.

Links

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

Example

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

Crossrefs

Cf. A316545.

Sequence in context: A165002 A165010 A304846 * A306058 A317236 A233387

Adjacent sequences: A316540 A316541 A316542 * A316544 A316545 A316546

Keyword

nonn

Author

R. H. Hardin, Jul 06 2018

Status

approved