A296384 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1s.

21, 869, 16248, 396806, 9703136, 229596763, 5498685275, 131626644289, 3147315906687, 75284357021585, 1800805794917354, 43074075211098174, 1030309700130652258, 24644506858739501310, 589484296341647840175

Offset

1,1

Comments

Column 6 of A296386.

Links

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

Example

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

Crossrefs

Cf. A296386.

Sequence in context: A119414 A012819 A297718 * A296641 A295038 A295529

Adjacent sequences: A296381 A296382 A296383 * A296385 A296386 A296387

Keyword

nonn

Author

R. H. Hardin, Dec 11 2017

Status

approved