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A046164
Number of distinct solutions to reverse the 8 puzzle (3 X 3 analogue of the 4 X 4 15 puzzle) in 28, 30, 32, ... moves.
+0
2
0, 10, 112, 512
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Maintained by
N. J. A. Sloane
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
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