A183443 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A183443

Number of n X n binary arrays with every 1 having exactly two king-move neighbors equal to 1

1, 5, 18, 72, 2054, 53608, 1744887, 216103851, 39184763856, 11314547102638, 7873316318240100, 9711485486581483616, 21262647899259681841579 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A183450`
	LINKS	`Table of n, a(n) for n=1..13.`
	EXAMPLE	`Some solutions for 5X5` `..0..0..0..0..0....0..0..0..1..0....0..0..1..0..0....0..1..0..0..0` `..1..0..0..0..0....0..1..1..0..1....0..1..0..1..0....1..1..0..1..0` `..1..1..0..1..1....1..0..0..0..1....1..0..0..0..1....0..0..0..1..1` `..0..0..0..0..1....1..0..0..0..1....1..0..0..0..1....1..1..0..0..0` `..0..0..0..0..0....0..1..1..1..0....0..1..1..1..0....0..1..0..0..0`
	CROSSREFS	`Sequence in context: A302077 A322773 A145780 * A034551 A052926 A296123` `Adjacent sequences: A183440 A183441 A183442 * A183444 A183445 A183446`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Jan 04 2011`
	STATUS	`approved`

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 25 04:11 EDT 2023. Contains 361511 sequences. (Running on oeis4.)