A299800 - OEIS

A299800

Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

1, 7, 20, 174, 7013, 388453, 61726046, 23457257837, 21977588184244 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A299806.`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=5` `..0..1..1..1..0. .0..1..1..1..0. .0..0..0..0..1. .0..0..0..0..0` `..0..0..0..0..0. .1..0..0..0..0. .1..1..1..1..1. .1..1..1..1..1` `..0..0..0..0..0. .1..0..0..0..0. .0..1..1..1..1. .0..1..1..1..0` `..0..0..0..0..0. .0..0..0..0..0. .0..1..1..1..1. .0..1..1..1..0` `..0..1..1..1..0. .1..1..1..1..0. .1..0..0..0..1. .1..0..0..0..1`
	CROSSREFS	`Cf. A299806.` `Sequence in context: A009372 A051102 A299009 * A299676 A300308 A344849` `Adjacent sequences: A299797 A299798 A299799 * A299801 A299802 A299803`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Feb 19 2018`
	STATUS	`approved`

Last modified February 6 18:02 EST 2023. Contains 360111 sequences. (Running on oeis4.)