A299515 - OEIS

A299515

Number of n X n 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

1, 1, 12, 8, 285, 12411, 902141, 310347496, 249358437986, 595135127486520 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	COMMENTS	`Diagonal of A299521.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=5` `..0..1..1..0..0. .0..1..0..1..1. .0..0..1..0..0. .0..0..0..0..0` `..1..1..1..0..0. .1..1..1..1..1. .0..0..0..0..0. .0..0..0..0..0` `..1..1..0..0..1. .0..1..1..0..0. .0..0..1..1..1. .1..1..1..1..1` `..0..0..0..0..0. .1..1..0..0..0. .0..0..1..1..1. .1..1..0..1..1` `..0..0..1..0..1. .1..1..0..0..1. .0..0..1..1..1. .0..1..1..1..0`
	CROSSREFS	`Cf. A299521.` `Sequence in context: A338809 A038334 A101501 * A326927 A338289 A018870` `Adjacent sequences: A299512 A299513 A299514 * A299516 A299517 A299518`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Feb 11 2018`
	STATUS	`approved`

Last modified January 31 15:11 EST 2023. Contains 359976 sequences. (Running on oeis4.)