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A316512 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 7 or 8 king-move adjacent elements, with upper left element zero. 0
1, 8, 28, 204, 2995, 73031, 3646656, 442204876, 110715247064, 59638747389710, 71177795600554924, 181350693611354151984, 1002521061243272588552787 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A316518.

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316518.

Sequence in context: A226744 A058289 A152014 * A200034 A230702 A244613

Adjacent sequences:  A316509 A316510 A316511 * A316513 A316514 A316515

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 05 2018

STATUS

approved

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Last modified June 6 17:33 EDT 2020. Contains 334831 sequences. (Running on oeis4.)