A317699 - OEIS

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A317699

Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 4, 25, 1719, 468002, 508895558, 2157266427366, 35375750998532860, 2234441612008121460906, 543166694783264652942675685 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A317703.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=5` `..0..0..0..1..1. .0..0..0..1..0. .0..0..0..0..1. .0..1..0..1..0` `..1..1..0..0..0. .1..1..0..1..0. .1..1..0..1..0. .0..1..0..1..0` `..0..0..1..0..1. .0..0..0..1..1. .1..0..0..1..1. .0..0..1..1..0` `..1..0..1..1..0. .0..0..1..0..0. .1..0..0..0..1. .1..1..1..0..0` `..1..0..0..1..0. .0..0..1..0..1. .1..0..1..0..1. .0..1..0..1..1`
	CROSSREFS	`Cf. A317703.` `Sequence in context: A317061 A144229 A316926 * A284106 A063802 A276266` `Adjacent sequences: A317696 A317697 A317698 * A317700 A317701 A317702`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Aug 04 2018`
	STATUS	`approved`

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Last modified August 14 03:03 EDT 2022. Contains 356109 sequences. (Running on oeis4.)