A316128 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

5, 333, 3421, 36480, 493599, 6605359, 83789779, 1087380450, 14339113742, 187117270428, 2435717884656, 31850097971470, 416308632912944, 5434155880969308, 70971271902000357, 927170796506608147

Offset

1,1

Comments

Column 6 of A316130.

Links

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

Example

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

Crossrefs

Cf. A316130.

Sequence in context: A316639 A304695 A316446 * A317434 A029495 A086900

Adjacent sequences: A316125 A316126 A316127 * A316129 A316130 A316131

Keyword

nonn

Author

R. H. Hardin, Jun 24 2018

Status

approved