A299601 Number of n X 7 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

0, 104, 3051, 72751, 4309263, 197267780, 9743385598, 481541186894, 23753464370841, 1177165425219598, 58266046167978416, 2886208357543956203, 142961429483327026603, 7081556077991924024988, 350792681281930188956328

Offset

1,2

Comments

Column 7 of A299602.

Links

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

Example

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

Crossrefs

Cf. A299602.

Sequence in context: A298628 A281536 A250684 * A217773 A298460 A299553

Adjacent sequences: A299598 A299599 A299600 * A299602 A299603 A299604

Keyword

nonn

Author

R. H. Hardin, Feb 14 2018

Status

approved