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A171908
a(n)= Number of 5 X 5 permutation matrices with trace n and determinant -1
2
20, 30, 0, 10, 0, 0
OFFSET
0,1
EXAMPLE
a(0)=20 because we have 20 different permutation matrices 5 x 5 with trace 0 and determinant -1.
KEYWORD
fini,full,nonn
AUTHOR
Artur Jasinski, Dec 31 2009
STATUS
approved