A316813 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

32, 2048, 80196, 3056047, 117897523, 4537910922, 174669587289, 6724877943937, 258886627124646, 9966623673408843, 383694464955596881, 14771440668663023820, 568670342007020406030, 21892644958911815404364

Offset

1,1

Comments

Column 6 of A316815.

Links

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

Example

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

Crossrefs

Cf. A316815.

Sequence in context: A208713 A305521 A316958 * A320369 A298968 A299738

Adjacent sequences: A316810 A316811 A316812 * A316814 A316815 A316816

Keyword

nonn

Author

R. H. Hardin, Jul 14 2018

Status

approved