A316738 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

5, 157, 509, 392, 25047, 144106, 625739, 8072260, 60509347, 401788861, 3559142414, 28264968587, 212858030531, 1726856604274, 13736918760177, 107239778635445, 852947266604901, 6765163110521794, 53339268912846789, 422445562993184549

Offset

1,1

Comments

Column 6 of A316740.

Links

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

Example

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

Crossrefs

Cf. A316740.

Sequence in context: A304147 A305487 A305087 * A009082 A156134 A183263

Adjacent sequences: A316735 A316736 A316737 * A316739 A316740 A316741

Keyword

nonn

Author

R. H. Hardin, Jul 11 2018

Status

approved