A318546 - OEIS

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A318546

Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

0, 3, 5, 64, 842, 14760, 437825, 21556643, 1516492860, 183780175203 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A318552.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=5:` `0 0 1 0 0 0 1 0 1 1 0 0 1 0 1 0 1 0 1 0` `1 0 0 0 1 1 1 1 0 0 1 0 0 0 1 0 0 0 0 1` `0 0 0 0 0 0 1 1 0 1 0 0 1 1 1 0 0 1 1 1` `1 1 0 0 0 1 0 0 0 0 0 1 0 1 0 1 0 1 0 1` `1 0 0 1 0 1 0 0 1 0 0 1 1 1 1 0 1 1 1 0`
	CROSSREFS	`Cf. A318552.` `Sequence in context: A222644 A181904 A319584 * A076513 A222611 A261071` `Adjacent sequences: A318543 A318544 A318545 * A318547 A318548 A318549`
	KEYWORD	`nonn,more`
	AUTHOR	`R. H. Hardin, Aug 28 2018`
	STATUS	`approved`

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)