A317267 - OEIS

A317267

Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 4, 13, 498, 31878, 3234635, 1396521994, 1165304769027, 2212187815200032 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A317271.`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=5` `..0..1..0..1..1. .0..1..1..1..0. .0..1..0..1..1. .0..1..1..1..1` `..0..1..1..0..0. .1..0..0..0..1. .1..0..0..0..0. .1..0..1..0..0` `..0..0..0..1..0. .1..1..1..1..1. .0..0..0..1..0. .1..1..1..1..1` `..1..0..0..0..1. .0..1..1..0..0. .0..1..0..1..1. .0..1..1..0..1` `..0..1..1..0..1. .1..0..0..1..1. .0..1..0..0..0. .1..0..1..1..0`
	CROSSREFS	`Cf. A317271.` `Sequence in context: A304545 A316372 A306130 * A219366 A270638 A182439` `Adjacent sequences: A317264 A317265 A317266 * A317268 A317269 A317270`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Jul 25 2018`
	STATUS	`approved`

Last modified June 27 16:27 EDT 2022. Contains 354896 sequences. (Running on oeis4.)