A316683 Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

0, 61, 387, 6742, 101803, 1591947, 24891152, 389069291, 6084616648, 95167937659, 1488365904621, 23278593237408, 364079491696592, 5694261125691785, 89059242220010598, 1392901030975100944, 21785207695709352714

Offset

1,2

Comments

Column 5 of A316686.

Links

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

Example

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

Crossrefs

Cf. A316686.

Sequence in context: A305454 A266134 A305019 * A264845 A340159 A142034

Adjacent sequences: A316680 A316681 A316682 * A316684 A316685 A316686

Keyword

nonn

Author

R. H. Hardin, Jul 10 2018

Status

approved