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A316682 Number of nXn 0..1 arrays with every element unequal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 0
0, 3, 14, 769, 101803, 43037698, 53245963290, 194833402798826, 2102329685792200336 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A316686.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316686.

Sequence in context: A304059 A305453 A305016 * A268158 A050645 A048568

Adjacent sequences:  A316679 A316680 A316681 * A316683 A316684 A316685

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 10 2018

STATUS

approved

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Last modified July 4 20:08 EDT 2022. Contains 355086 sequences. (Running on oeis4.)