A304153 Number of nX5 0..1 arrays with every element unequal to 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

0, 61, 130, 1767, 13279, 100942, 839935, 6803634, 54261600, 441840835, 3569262964, 28807241168, 233159844870, 1884661005225, 15233397819139, 123179691694152, 995827871395574, 8050733022232712, 65089574008016784, 526225152552918970

Offset

1,2

Comments

Column 5 of A304156.

Links

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

Example

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

Crossrefs

Cf. A304156.

Sequence in context: A044629 A283425 A142065 * A305506 A073761 A142093

Adjacent sequences: A304150 A304151 A304152 * A304154 A304155 A304156

Keyword

nonn

Author

R. H. Hardin, May 07 2018

Status

approved