A300810 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

64, 5536, 205369, 8363710, 343667594, 14189038853, 585611214958, 24166702223161, 997271941003944, 41155002052053688, 1698364186084410971, 70087264998653292977, 2892325757357593824036, 119359046546325613534455

Offset: 1

Author

R. H. Hardin, Mar 13 2018

Keywords

• nonn

Comments

Column 7 of A300811.

Examples

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

Links

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

Crossrefs

Cf. A300811.