A316819 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

16, 420, 5701, 87009, 1363249, 20825877, 321003969, 4949107992, 76181954073, 1173445180271, 18074154495151, 278365002091466, 4287367571041734, 66033505190604677, 1017035165572036700, 15664223414560162155

Offset

1,1

Comments

Column 5 of A316822.

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..0..0..0. .0..0..0..0..0
..0..0..0..0..0. .1..0..0..1..1. .0..0..1..0..0. .0..0..0..0..0
..0..0..0..0..0. .1..0..0..0..1. .1..1..1..0..0. .1..1..1..1..1
..0..1..1..0..1. .0..0..0..1..0. .0..1..1..1..0. .0..1..1..1..1
..1..0..0..1..0. .1..0..0..0..1. .0..1..1..1..1. .0..1..0..0..0

Crossrefs

Cf. A316822.

Sequence in context: A317115 A305527 A317001 * A317569 A268053 A268076

Adjacent sequences: A316816 A316817 A316818 * A316820 A316821 A316822

Keyword

nonn

Author

R. H. Hardin, Jul 14 2018

Status

approved