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A019317 Place n queens on an n X n board so as to leave the maximal number of unattacked squares; sequence gives number of different solutions. 1
1, 2, 16, 25, 1, 3, 38, 7, 1, 1, 2, 7, 1, 4, 3, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..16.

Source

CROSSREFS

Cf. A001366.

Sequence in context: A228158 A295822 A212765 * A276069 A190046 A067566

Adjacent sequences:  A019314 A019315 A019316 * A019318 A019319 A019320

KEYWORD

nonn

AUTHOR

Mario Velucchi (mathchess(AT)velucchi.it)

STATUS

approved

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Last modified November 20 12:37 EST 2018. Contains 317402 sequences. (Running on oeis4.)