A297724 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.

1, 280, 4090, 34319, 512354, 8103241, 107787351, 1446088760, 20410564866, 284834549399, 3925719705949, 54393595038381, 755754672219017, 10479694450894966, 145249271559341180, 2014480587809008069

Offset: 1

Author

R. H. Hardin, Jan 04 2018

Keywords

• nonn

Comments

Row 5 of A297720.

Examples

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

Links

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

Crossrefs

Cf. A297720.