A297641 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1s.

32, 132, 2344, 16508, 201152, 2077060, 25139952, 285058636, 3446395554, 41660051879, 510582745043, 6254972020856, 77167702934553, 953549323372365, 11801383201277642, 146150584138651793, 1811570479937473619

Offset

1,1

Comments

Row 5 of A297637.

Links

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

Example

Some solutions for n=4
..1..1..1..0. .0..0..1..1. .1..0..0..1. .1..1..0..1. .1..0..1..0
..0..1..1..0. .1..0..1..1. .0..0..0..0. .1..1..0..0. .1..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..1..0. .0..0..0..0. .1..0..0..1
..0..0..0..1. .0..1..1..0. .0..0..1..0. .1..0..0..0. .0..0..0..0
..0..0..0..0. .0..1..1..1. .1..0..0..0. .0..0..0..1. .1..0..0..0

Crossrefs

Cf. A297637.

Sequence in context: A060670 A044364 A044745 * A304380 A297887 A298492

Adjacent sequences: A297638 A297639 A297640 * A297642 A297643 A297644

Keyword

nonn

Author

R. H. Hardin, Jan 02 2018

Status

approved