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A002465
Number of placements of 2n-2 nonattacking bishops on an n X n board.
(Formerly M3616 N1467)
+0
1
1, 4, 26, 260, 3368, 53744, 1022320, 22522960, 565532992, 15915225216
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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