A296394 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1s.

9, 139, 1280, 14502, 159732, 1740403, 19142885, 209776696, 2301194495, 25237251699, 276785466405, 3035734743763, 33294250450804, 365158264017369, 4004894789690661, 43923943237475449, 481738909997954720

Offset

1,1

Comments

Column 6 of A296396.

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. .1..1..0..0..1..0. .1..1..0..0..0..0. .0..1..0..0..1..1
..0..0..0..1..0..0. .0..0..0..1..0..1. .0..0..1..0..0..0. .0..1..1..0..0..0
..1..1..0..0..0..0. .1..0..0..0..0..1. .0..1..0..1..0..1. .1..0..0..0..0..0
..0..0..0..0..0..0. .1..1..0..0..0..0. .0..0..0..1..0..1. .0..0..1..0..0..0
..0..0..0..0..1..1. .1..1..1..0..0..0. .1..1..0..0..0..0. .0..1..0..1..1..0

Crossrefs

Cf. A296396.

Sequence in context: A139760 A112702 A367426 * A367246 A322576 A350925

Adjacent sequences: A296391 A296392 A296393 * A296395 A296396 A296397

Keyword

nonn

Author

R. H. Hardin, Dec 11 2017

Status

approved