A316754 Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

3, 27, 79, 37, 642, 3366, 4397, 25154, 137845, 309382, 1206207, 5904494, 17498116, 61651672, 267672528, 908607719, 3166116692, 12672266364, 45619974681, 161089019345, 615680573625, 2264002238286, 8118105866800, 30312478695463

Offset

1,1

Comments

Column 5 of A316757.

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..1. .0..0..1..1..1. .0..1..0..0..0
..0..1..1..0..1. .0..1..0..0..0. .1..1..1..0..1. .1..0..0..1..0
..1..1..1..1..1. .0..0..0..0..0. .1..1..1..1..1. .0..0..0..0..0
..1..1..1..1..0. .1..0..0..0..1. .0..1..1..0..1. .0..0..0..1..0
..0..0..1..1..0. .0..1..0..1..0. .1..0..1..1..0. .1..1..0..0..0

Crossrefs

Cf. A316757.

Sequence in context: A302275 A302725 A166102 * A045491 A318908 A343135

Adjacent sequences: A316751 A316752 A316753 * A316755 A316756 A316757

Keyword

nonn

Author

R. H. Hardin, Jul 12 2018

Status

approved