A297658 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.

1, 454, 9033, 113252, 2525244, 56630842, 1075678445, 21111073411, 431729675719, 8661860619988, 172481732429072, 3459368740976069, 69421866008508425, 1390069610625497582, 27843303573923481669, 558020746500279361494

Offset

1,2

Comments

Row 5 of A297654.

Links

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

Example

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

Crossrefs

Cf. A297654.

Sequence in context: A259058 A213532 A234771 * A219006 A092267 A232758

Adjacent sequences: A297655 A297656 A297657 * A297659 A297660 A297661

Keyword

nonn

Author

R. H. Hardin, Jan 02 2018

Status

approved