A299944 - OEIS

A299944

Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 7, 20, 75, 644, 4604, 116051, 5133698, 330723200, 54246156735 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A299948.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=5` `..0..1..0..0..0. .0..0..1..0..1. .0..0..0..0..0. .0..1..0..1..1` `..0..0..0..0..1. .1..0..1..0..0. .1..1..1..1..1. .0..0..0..1..0` `..0..0..0..0..1. .0..0..1..0..0. .0..0..0..0..0. .0..0..1..0..1` `..1..0..1..1..0. .0..0..1..0..1. .0..1..0..0..1. .1..0..0..1..0` `..1..0..1..0..1. .1..0..1..0..0. .0..0..0..0..0. .1..1..0..1..1`
	CROSSREFS	`Cf. A299948.` `Sequence in context: A196584 A301777 A299181 * A265657 A298214 A299346` `Adjacent sequences: A299941 A299942 A299943 * A299945 A299946 A299947`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Feb 22 2018`
	STATUS	`approved`

Last modified March 23 10:25 EDT 2023. Contains 361443 sequences. (Running on oeis4.)