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A316507 Number of nXn 0..1 arrays with every element unequal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 0
0, 3, 16, 1321, 317264, 295326468, 990266635029, 12088043573966128, 535440346291887704215 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A316511.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=5

..0..1..0..1..0. .0..0..0..1..0. .0..1..0..1..0. .0..1..0..1..0

..0..1..1..0..1. .1..1..1..0..1. .0..1..1..1..1. .0..1..1..0..1

..1..0..1..1..0. .0..0..1..0..0. .0..0..0..0..0. .1..0..1..1..0

..0..1..0..0..1. .1..1..0..1..1. .1..0..0..1..1. .1..1..0..0..0

..1..0..1..1..0. .0..1..1..0..0. .0..1..1..1..0. .0..1..1..1..1

CROSSREFS

Cf. A316511.

Sequence in context: A002794 A132559 A304761 * A317459 A080273 A096404

Adjacent sequences:  A316504 A316505 A316506 * A316508 A316509 A316510

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 05 2018

STATUS

approved

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Last modified July 6 06:13 EDT 2022. Contains 355108 sequences. (Running on oeis4.)