A317071 Number of n X 7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

8, 5824, 463269, 49272887, 5070445036, 522394508690, 53838648326109, 5548431500694700, 571800375208117048, 58927713627125552536, 6072879025469583682081, 625849149740372207708915

Offset

1,1

Comments

Column 7 of A317072.

Links

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

Example

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

Crossrefs

Cf. A317072.

Sequence in context: A305960 A317221 A305691 * A316952 A317732 A179151

Adjacent sequences: A317068 A317069 A317070 * A317072 A317073 A317074

Keyword

nonn

Author

R. H. Hardin, Jul 20 2018

Status

approved