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A056989
Number of nonsingular n X n (-1,0,1)-matrices (over the reals).
+0
6
2, 48, 11808, 27947520, 609653621760
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Maintained by
N. J. A. Sloane
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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