A296820 - OEIS

A296820

Number of n X n 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1's.

1, 6, 94, 2272, 510086, 267542809, 364592446431, 2034946979145210, 34966993876417278748 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A296827.`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=4` `..0..0..1..1. .1..1..0..0. .1..1..1..1. .0..0..0..0. .0..0..0..0` `..1..1..0..1. .0..1..0..0. .1..0..0..1. .0..0..0..0. .1..1..1..0` `..0..1..0..1. .0..1..0..0. .0..1..1..0. .1..1..1..0. .0..1..1..0` `..0..0..1..1. .1..1..1..0. .0..0..1..1. .0..1..0..0. .0..0..0..0`
	CROSSREFS	`Cf. A296827.` `Sequence in context: A221525 A321073 A198257 * A184983 A184980 A184981` `Adjacent sequences: A296817 A296818 A296819 * A296821 A296822 A296823`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Dec 21 2017`
	STATUS	`approved`

Last modified March 29 22:15 EDT 2023. Contains 361599 sequences. (Running on oeis4.)