A305520 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

16, 512, 10082, 186237, 3536750, 66949063, 1269418258, 24080732454, 456869647792, 8669106351850, 164501969899649, 3121616742992729, 59236894351198887, 1124106233985029726, 21331602801233941787

Offset

1,1

Comments

Column 5 of A305523.

Links

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

R. H. Hardin, Empirical recurrence of order 58

Formula

Empirical recurrence of order 58 (see link above)

Example

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

Crossrefs

Cf. A305523.

Sequence in context: A302811 A303472 A208712 * A316957 A298967 A299737

Adjacent sequences: A305517 A305518 A305519 * A305521 A305522 A305523

Keyword

nonn

Author

R. H. Hardin, Jun 04 2018

Status

approved