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A032522
Number of symmetric solutions to non-attacking queens problem on n X n board.
(Formerly M0330 N0125)
+0
6
1, 0, 0, 2, 2, 4, 8, 4, 16, 12, 48, 80, 136, 420, 1240, 3000, 8152, 18104, 44184, 144620, 375664, 1250692, 3581240, 11675080, 34132592, 115718268, 320403024, 1250901440, 3600075088, 14589438024, 43266334696, 181254386312
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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