A171809 Number of 5 X 5 permutation matrices such that the n-th matrix power is the identity matrix and the determinant is -1.

0, 10, 0, 30, 0, 20

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Crossrefs

Cf. A171806, A171808

Sequence in context: A107772 A087474 A051906 * A167302 A302576 A214122

Adjacent sequences: A171806 A171807 A171808 * A171810 A171811 A171812

Keyword

fini,nonn,full

Author

Artur Jasinski, Dec 18 2009, corrected Dec 28 2009

Status

approved