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A051223
Number of ways of placing n nonattacking superqueens on an n X n board.
+0
4
1, 0, 0, 0, 0, 0, 0, 0, 0, 4, 44, 156, 1876, 5180, 32516, 202900, 1330622, 8924976, 64492432, 495864256, 3977841852, 34092182276, 306819842212, 2883202816808
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Maintained by
N. J. A. Sloane
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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.
AT&T Labs Research
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