A298291 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

16, 69, 43, 130, 308, 515, 1084, 2374, 4754, 10042, 21207, 44405, 93926, 196545, 415228, 877028, 1844607, 3908606, 8255033, 17418152, 36906038, 78043557, 165022448, 349534285, 739762655, 1565641561, 3315996470, 7021318129

Offset

1,1

Comments

Column 5 of A298294.

Links

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

Example

Some solutions for n=7
..0..1..1..0..1. .0..0..0..0..1. .0..1..0..0..1. .0..1..1..0..0
..1..1..1..1..0. .1..1..1..1..1. .0..1..1..1..0. .1..1..1..1..0
..1..1..0..1..0. .0..1..1..0..0. .1..0..1..0..1. .0..0..0..0..0
..1..0..1..0..1. .1..1..0..1..1. .1..0..1..0..1. .1..0..0..1..1
..1..1..0..1..0. .0..0..1..1..0. .1..0..1..0..1. .0..0..1..0..0
..0..0..1..0..1. .1..0..0..1..0. .0..1..1..1..0. .0..0..0..0..1
..0..1..0..1..0. .1..0..1..0..1. .0..1..0..0..1. .1..0..0..1..1

Crossrefs

Cf. A298294.

Sequence in context: A235643 A297886 A298491 * A299385 A299184 A299945

Adjacent sequences: A298288 A298289 A298290 * A298292 A298293 A298294

Keyword

nonn

Author

R. H. Hardin, Jan 16 2018

Status

approved