login
A086479
Number of invertible circulant (0,1) matrices over the reals that have even determinant.
1
0, 0, 3, 0, 15, 12, 77, 32, 261, 260, 1023, 1056, 4095, 6552, 19905, 15872, 66045, 97740, 262143, 321320, 1404375, 1391720, 4198397, 6108912, 17619525, 23153832, 79255071, 116921224, 268435455, 529405320, 1259979965, 1408246784
OFFSET
1,3
FORMULA
a(n) = A086323(n) - A003473(n)
CROSSREFS
KEYWORD
nonn
AUTHOR
Yuval Dekel (dekelyuval(AT)hotmail.com), Sep 09 2003
EXTENSIONS
More terms from Max Alekseyev, Sep 25 2009
STATUS
approved