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A118999 Number of real n X n symmetric (+1,-1) matrices with negative permanent. +0
3
0, 0, 32, 240, 11904, 533568, 134217728 (list; graph; listen)
OFFSET

1,3
CROSSREFS

Cf. A118997, A118995.

Sequence in context: A022146 A160061 A060622 this_sequence A008512 A111450 A070332

Adjacent sequences: A118996 A118997 A118998 this_sequence A119000 A119001 A119002

KEYWORD

nonn,more

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), May 08 2006

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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