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A086479 Number of invertible circulant (0,1) matrices over the reals that have even determinant. +0
2
0, 0, 3, 0, 15, 12, 77, 32, 261, 260 (list; graph; listen)
OFFSET

1,3

FORMULA

a(n) = A086323(n) - A003473(n)

CROSSREFS

Cf. A003473, A086323, A086324.

Sequence in context: A123023 A130637 A054882 this_sequence A091000 A013490 A013351

Adjacent sequences: A086476 A086477 A086478 this_sequence A086480 A086481 A086482

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Sep 09 2003

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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