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A118987
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Number of different values taken by the determinant of a symmetric real (+1,-1)-matrix of order n.
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3
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1, 2, 2, 3, 5, 7, 11, 19, 40, 91, 214
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OFFSET
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0,2
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LINKS
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CROSSREFS
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Cf. A006125 (number of symmetric real (+1,-1)-matrices of order (n-1)).
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KEYWORD
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nonn,more,changed
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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