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A317459 Number of nXn 0..1 arrays with every element unequal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 0
0, 3, 16, 1429, 386855, 426934467, 1798167135483, 29212515031084662, 1822743346281286133973, 437041238063851834989854827 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A317465.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A317465.

Sequence in context: A132559 A304761 A316507 * A080273 A096404 A111824

Adjacent sequences:  A317456 A317457 A317458 * A317460 A317461 A317462

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 28 2018

STATUS

approved

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Last modified September 25 20:01 EDT 2020. Contains 337344 sequences. (Running on oeis4.)