A298086 Number of nX7 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

0, 34, 18, 213, 1574, 11202, 65218, 479206, 3481050, 24695892, 177272585, 1292781132, 9346339114, 67597407637, 490930663188, 3562917786488, 25842902976432, 187580825378770, 1361838171557890, 9885195460409937

Offset: 1

Author

R. H. Hardin, Jan 12 2018

Keywords

• nonn

Comments

Column 7 of A298087.

Examples

			Some solutions for n=7
..0..0..0..0..0..0..0. .0..0..0..0..0..0..1. .0..0..1..1..0..1..1
..0..1..1..1..1..1..0. .0..1..1..1..0..1..1. .0..1..1..0..0..0..1
..1..0..1..0..0..1..0. .1..0..1..0..0..1..0. .1..1..1..1..1..1..0
..0..1..0..1..0..1..0. .1..0..0..0..0..0..0. .0..0..1..1..0..0..1
..0..0..1..1..0..1..0. .0..1..1..0..0..1..0. .0..0..1..0..1..1..0
..1..0..0..0..1..1..0. .0..0..1..1..0..1..1. .0..0..1..0..0..0..1
..1..1..1..1..1..0..0. .0..1..1..0..0..0..1. .0..0..1..1..1..1..1
		

Links

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

Crossrefs

Cf. A298087.