A316414 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

1, 4, 14, 93, 1265, 33380, 1459806, 110043463, 14254922771, 3155289459645, 1195938340938067, 776257336467287589

Offset

1,2

Comments

Diagonal of A316420.

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Cf. A316420.

Sequence in context: A331637 A340024 A190481 * A268689 A299199 A209322

Adjacent sequences: A316411 A316412 A316413 * A316415 A316416 A316417

Keyword

nonn

Author

R. H. Hardin, Jul 02 2018

Status

approved