A316180 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.

16, 420, 2665, 21825, 168051, 1361115, 11056918, 90607484, 744476711, 6128725337, 50505657943, 416410008391, 3434291565162, 28328056127096, 233686613328253, 1927836538740757, 15904394556151648, 131210860066827373

Offset

1,1

Comments

Column 5 of A316183.

Links

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

R. H. Hardin, Empirical recurrence of order 74

Formula

Empirical recurrence of order 74 (see link above)

Example

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

Crossrefs

Cf. A316183.

Sequence in context: A349966 A143039 A281952 * A305766 A317115 A305527

Adjacent sequences: A316177 A316178 A316179 * A316181 A316182 A316183

Keyword

nonn

Author

R. H. Hardin, Jun 25 2018

Status

approved