A297548 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.

1, 14, 461, 2205, 12161, 205888, 2748026, 25141813, 257022624, 3107723264, 35428053457, 379567391600, 4182220329864, 47242475898249, 526748427926749, 5818430376752828, 64655311668945484, 721026932221046595

Offset

1,2

Comments

Row 5 of A297544.

Links

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

Example

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

Crossrefs

Cf. A297544.

Sequence in context: A305115 A282245 A319096 * A215787 A005790 A208563

Adjacent sequences: A297545 A297546 A297547 * A297549 A297550 A297551

Keyword

nonn

Author

R. H. Hardin, Dec 31 2017

Status

approved