A303099 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

3, 161, 2913, 58160, 1138331, 22292709, 436394066, 8545589681, 167325743073, 3276397352974, 64154700406471, 1256205180765473, 24597599305382336, 481642558107218459, 9430983527094262675, 184666925800707714070

Offset: 1

Author

R. H. Hardin, Apr 18 2018

Keywords

• nonn

Comments

Column 5 of A303102.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 90

Crossrefs

Cf. A303102.

Formula

Empirical recurrence of order 90 (see link above)