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A003221 Number of even permutations of length n with no fixed points.
(Formerly M0922) 		+0
7
1, 0, 0, 2, 3, 24, 130, 930, 7413, 66752, 667476, 7342290, 88107415, 1145396472, 16035550518, 240533257874, 3848532125865, 65425046139840, 1177650830516968, 22375365779822562, 447507315596451051, 9397653627525472280, 206748379805560389930 (list; graph; listen)
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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