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A299747 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 0
1, 8, 95, 1998, 115279, 9822603, 1686794332, 723176599097, 545447250355818 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A299753.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A299753.

Sequence in context: A182648 A003775 A262737 * A300261 A121785 A305587

Adjacent sequences: A299744 A299745 A299746 * A299748 A299749 A299750

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 18 2018

STATUS

approved

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Last modified April 1 15:49 EDT 2023. Contains 361695 sequences. (Running on oeis4.)