A298710 Number of nX6 0..1 arrays with every element equal to 1, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

1, 53, 20, 87, 1354, 3950, 9586, 92375, 384519, 1468344, 9531019, 48632741, 222839718, 1283757387, 6897783261, 35029987304, 193742947555, 1057480722066, 5617597365512, 30811375701229, 168849070826644, 914727570968224

Offset

1,2

Comments

Column 6 of A298712.

Links

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

Example

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

Crossrefs

Cf. A298712.

Sequence in context: A298061 A297984 A298633 * A048602 A048606 A033373

Adjacent sequences: A298707 A298708 A298709 * A298711 A298712 A298713

Keyword

nonn

Author

R. H. Hardin, Jan 25 2018

Status

approved