A316807 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

64, 8192, 877309, 93109949, 9972851339, 1068884675914, 114545399709628, 12275005648997685, 1315428650403022308, 140965539170448058954, 15106316760832510128905, 1618841081133288189660930

Offset

1,1

Comments

Column 7 of A316808.

Links

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

Example

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

Crossrefs

Cf. A316808.

Sequence in context: A302009 A301783 A213417 * A317524 A299653 A300207

Adjacent sequences: A316804 A316805 A316806 * A316808 A316809 A316810

Keyword

nonn

Author

R. H. Hardin, Jul 14 2018

Status

approved