A316880 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

16, 94, 388, 2401, 18847, 125218, 843479, 6198339, 45184963, 326389098, 2402046659, 17720890254, 130440276569, 964053093375, 7131453549425, 52734450773582, 390342305773895, 2889943173985064, 21394977504230336

Offset

1,1

Comments

Column 5 of A316883.

Links

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

Example

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

Crossrefs

Cf. A316883.

Sequence in context: A294433 A160750 A305908 * A317150 A317608 A379569

Adjacent sequences: A316877 A316878 A316879 * A316881 A316882 A316883

Keyword

nonn

Author

R. H. Hardin, Jul 15 2018

Status

approved