A300214 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

64, 8192, 629440, 54246856, 4666136435, 402932952786, 34824178698922, 3010162276020151, 260210978826555172, 22494096787493774522, 1944522379136741443363, 168096182839942928684790

Offset: 1

Author

R. H. Hardin, Feb 28 2018

Keywords

• nonn

Comments

Column 7 of A300215.

Examples

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

Links

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

Crossrefs

Cf. A300215.