A316734 - OEIS

A316734

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

0, 7, 23, 95, 4956, 144106, 1906293, 1342645923, 632741511767, 215792317298469 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A316740.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=5` `..0..1..1..1..0. .0..1..1..0..0. .0..0..1..0..1. .0..0..1..1..0` `..0..0..1..1..1. .0..0..1..1..0. .0..1..0..1..0. .1..0..1..1..0` `..1..1..1..0..1. .1..1..1..1..1. .0..0..0..0..0. .1..1..1..0..1` `..1..0..1..1..0. .1..1..0..0..1. .0..1..0..0..0. .0..1..1..0..1` `..0..1..1..1..0. .0..1..1..1..0. .0..1..1..0..1. .0..0..1..1..0`
	CROSSREFS	`Cf. A316740.` `Sequence in context: A003540 A063793 A217233 * A096327 A267805 A154113` `Adjacent sequences: A316731 A316732 A316733 * A316735 A316736 A316737`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Jul 11 2018`
	STATUS	`approved`

Last modified March 29 09:20 EDT 2023. Contains 361598 sequences. (Running on oeis4.)