A298091 Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.

5, 49, 33, 92, 87, 171, 203, 328, 484, 782, 1106, 1905, 2833, 4428, 7210, 11516, 17938, 28859, 46630, 73610, 118590, 191530, 307255, 494129, 797251, 1286394, 2075589, 3359029, 5437187, 8799802, 14259390, 23128238, 37531667, 60964288, 99077978

Offset: 1

Author

R. H. Hardin, Jan 12 2018

Keywords

• nonn

Comments

Column 6 of A298093.

Examples

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

Links

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

Crossrefs

Cf. A298093.