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A086323
Number of n X n circulant invertible (0,1) matrices over the reals.
5
1, 2, 6, 8, 30, 36, 126, 160, 450, 740, 2046, 2592, 8190, 12824, 30030, 48640, 131070, 194508, 524286, 812840, 1987818, 3486824, 8388606, 12400368, 33348150, 56700072, 128800098, 219681672, 536870910, 861181320, 2147483646, 3555730432
OFFSET
1,2
LINKS
FORMULA
a(n) = 2^n - A086328(n).
CROSSREFS
Cf. A003473.
Sequence in context: A216762 A132269 A053287 * A336618 A075999 A096999
KEYWORD
nonn
AUTHOR
Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 30 2003
EXTENSIONS
More terms from Vladeta Jovovic, Sep 08 2003
More terms from Max Alekseyev, Sep 24 2009
STATUS
approved