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A007631
Number of solutions to non-attacking reflecting queens problem.
(Formerly M0929)
+0
1
2, 4, 0, 2, 10, 32, 38, 140, 496, 1186, 3178, 16792, 82038, 289566
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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 4 15:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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