A303530 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

64, 86, 687, 4112, 56046, 965150, 15768709, 258412452, 4730074082, 89182240009, 1607792486756, 28651954738510, 525363767853510, 9705710828046354, 176560700611952149, 3198325214799036047, 58453456076912623357

Offset: 1

Author

R. H. Hardin, Apr 25 2018

Keywords

• nonn

Comments

Row 7 of A303525.

Examples

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

Links

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

Crossrefs

Cf. A303525.