A316573 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 82, 94, 899, 3180, 17695, 88597, 457091, 2402617, 12290981, 65257765, 336884544, 1773776826, 9233352806, 48396620921, 252740116169, 1322408364998, 6913953592171, 36156417858788, 189087266707408, 988763407162789

Offset

1,2

Comments

Column 5 of A316576.

Links

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

Example

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

Crossrefs

Cf. A316576.

Sequence in context: A282114 A099067 A304891 * A294308 A025361 A296809

Adjacent sequences: A316570 A316571 A316572 * A316574 A316575 A316576

Keyword

nonn

Author

R. H. Hardin, Jul 07 2018

Status

approved