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A350611 Number of solutions to the Xqueens problem on an n X n board. 3
1, 6, 132, 20742, 5834838, 4198336824 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

Don Knuth, Xqueens and Xqueenons, 2021.

CROSSREFS

Cf. A350612-A350614.

Sequence in context: A132872 A152289 A015503 * A247012 A003373 A129047

Adjacent sequences:  A350608 A350609 A350610 * A350612 A350613 A350614

KEYWORD

nonn,more

AUTHOR

Don Knuth, Jan 16 2022

STATUS

approved

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Last modified October 4 09:28 EDT 2022. Contains 357239 sequences. (Running on oeis4.)