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A316276 Number of nXn 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 0
0, 7, 125, 9540, 1820908, 1000914270, 1545539179382, 6744089252983902, 83045349878880145528 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A316282.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316282.

Sequence in context: A322090 A304420 A217910 * A220615 A113162 A180583

Adjacent sequences:  A316273 A316274 A316275 * A316277 A316278 A316279

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 28 2018

STATUS

approved

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Last modified July 17 17:14 EDT 2019. Contains 325107 sequences. (Running on oeis4.)