A320396 - OEIS

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A320396

Number of n X n 0..1 arrays with every element unequal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 8, 142, 5956, 561290, 127789964, 69104597430, 87904609418608, 265822679694670068, 1902510531491092792194 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A320402.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=5:` `0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0` `0 0 0 1 1 1 1 1 1 1 0 0 1 1 0 1 1 1 1 0` `1 0 0 1 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1` `1 0 1 1 0 1 0 1 0 0 1 1 1 0 0 0 0 0 0 1` `1 0 1 1 1 0 1 1 1 1 0 0 1 0 0 0 0 1 1 0`
	CROSSREFS	`Cf. A320402.` `Sequence in context: A305763 A180357 A317112 * A112464 A227875 A235383` `Adjacent sequences: A320393 A320394 A320395 * A320397 A320398 A320399`
	KEYWORD	`nonn,more`
	AUTHOR	`R. H. Hardin, Oct 12 2018`
	STATUS	`approved`

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Last modified May 22 10:56 EDT 2022. Contains 353949 sequences. (Running on oeis4.)