A316215 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

16, 94, 250, 1468, 8943, 44018, 242149, 1355516, 7364630, 40388824, 222974019, 1225436161, 6741965729, 37150153393, 204608197301, 1127155820271, 6212102723367, 34238049347483, 188724654726661, 1040456205264741

Offset

1,1

Comments

Column 5 of A316218.

Links

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

Example

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

Crossrefs

Cf. A316218.

Sequence in context: A185458 A108676 A304344 * A305639 A317033 A294433

Adjacent sequences: A316212 A316213 A316214 * A316216 A316217 A316218

Keyword

nonn

Author

R. H. Hardin, Jun 26 2018

Status

approved