A350613 - OEIS

A350613

Number of paired solutions to the Xqueens problem on a 2n X 2n board.

4, 528, 3938208 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..3.` `Don Knuth, Xqueens and Xqueenons, 2021.`
	CROSSREFS	`Cf. A350611-A350614.` `Sequence in context: A089668 A257922 A083284 * A152218 A152463 A295206` `Adjacent sequences: A350610 A350611 A350612 * A350614 A350615 A350616`
	KEYWORD	`nonn,more`
	AUTHOR	`Don Knuth, Jan 16 2022`
	STATUS	`approved`

Last modified August 17 16:12 EDT 2022. Contains 356189 sequences. (Running on oeis4.)