A317034 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

32, 284, 842, 7523, 66728, 559097, 4939166, 46085330, 435634601, 4109259096, 39502787486, 382550326933, 3700464953992, 36024218018984, 351424425811465, 3427325879322587, 33499352998619498, 327584944382674210

Offset

1,1

Comments

Column 6 of A317036.

Links

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

Example

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

Crossrefs

Cf. A317036.

Sequence in context: A304345 A316216 A305640 * A305909 A317151 A316881

Adjacent sequences: A317031 A317032 A317033 * A317035 A317036 A317037

Keyword

nonn

Author

R. H. Hardin, Jul 19 2018

Status

approved