A316877 - OEIS

A316877

Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

1, 4, 37, 452, 18847, 1187727, 180224021, 79732305036, 91692297769706 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A316883.`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=5` `..0..0..0..0..0. .0..0..0..1..1. .0..1..0..1..0. .0..0..1..0..0` `..0..0..0..0..0. .0..0..0..1..1. .0..0..0..0..0. .0..1..0..0..0` `..1..0..1..0..0. .1..0..0..0..1. .0..0..0..0..0. .0..1..0..1..0` `..0..0..0..1..0. .1..0..0..0..1. .1..0..1..0..0. .1..1..1..0..1` `..0..0..0..0..1. .0..0..0..0..0. .1..0..1..0..0. .1..1..1..1..1`
	CROSSREFS	`Cf. A316883.` `Sequence in context: A070768 A221630 A235135 * A349254 A277638 A352237` `Adjacent sequences: A316874 A316875 A316876 * A316878 A316879 A316880`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Jul 15 2018`
	STATUS	`approved`

Last modified March 21 18:35 EDT 2023. Contains 361410 sequences. (Running on oeis4.)