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A316124 Number of nXn 0..1 arrays with every element unequal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 0
0, 7, 60, 1112, 58172, 6605359, 1573249156, 869530995479, 1186105791644202 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A316130.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316130.

Sequence in context: A222651 A287689 A289874 * A156545 A292004 A157871

Adjacent sequences:  A316121 A316122 A316123 * A316125 A316126 A316127

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 24 2018

STATUS

approved

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Last modified October 22 06:54 EDT 2019. Contains 328315 sequences. (Running on oeis4.)