A299660 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

64, 8192, 624007, 53909088, 4634931975, 400012077773, 34546300829517, 2983786339120760, 257723568617382229, 22261041202423804183, 1922815213079467303536, 166084822425643801285901

Offset: 1

Author

R. H. Hardin, Feb 15 2018

Keywords

• nonn

Comments

Column 7 of A299661.

Examples

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

Links

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

Crossrefs

Cf. A299661.