A302883 - OEIS

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A302883

Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

1, 2, 37, 238, 20937, 3452246, 2899297652, 7977498513759, 75895729469717417 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A302889.`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=5` `..0..1..1..0..1. .0..0..0..0..0. .0..0..1..1..1. .0..0..0..1..1` `..1..1..0..0..0. .0..0..0..0..0. .1..0..0..1..1. .1..0..0..1..1` `..0..0..1..0..0. .0..0..1..1..0. .1..0..0..0..0. .1..0..1..0..1` `..0..0..0..1..1. .1..1..1..0..0. .1..0..1..0..0. .0..0..0..1..1` `..1..0..0..1..1. .0..1..1..0..0. .0..0..0..0..0. .0..0..0..1..1`
	CROSSREFS	`Cf. A302889.` `Sequence in context: A139119 A244757 A298476 * A053788 A078976 A200911` `Adjacent sequences: A302880 A302881 A302882 * A302884 A302885 A302886`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Apr 15 2018`
	STATUS	`approved`

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Last modified February 4 10:27 EST 2023. Contains 360053 sequences. (Running on oeis4.)