A317219 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

3, 383, 6134, 133874, 2762836, 57448875, 1193567097, 24804953660, 515450451064, 10711595142649, 222596927927964, 4625779935011570, 96128248582112606, 1997639685439895587, 41512923795942886176, 862679553084330667877

Offset

1,1

Comments

Column 5 of A317222.

Links

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

Example

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

Crossrefs

Cf. A317222.

Sequence in context: A304424 A316279 A305958 * A305689 A317069 A316950

Adjacent sequences: A317216 A317217 A317218 * A317220 A317221 A317222

Keyword

nonn

Author

R. H. Hardin, Jul 23 2018

Status

approved