A298894 Number of nX7 0..1 arrays with every element equal to 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

0, 34, 26, 229, 1858, 12224, 74725, 547497, 4012035, 28805843, 209118279, 1537327380, 11240705948, 82185225848, 602873376262, 4421261929905, 32410993796867, 237712768537660, 1743828733781802, 12791372365817836

Offset: 1

Author

R. H. Hardin, Jan 28 2018

Keywords

• nonn

Comments

Column 7 of A298895.

Examples

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

Links

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

Crossrefs

Cf. A298895.