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A088506 Number of permutations in the symmetric group S_n that have odd number of transpositions in their cycle decomposition. 3
0, 1, 3, 6, 30, 240, 1680, 12600, 113400, 1149120, 12640320, 151351200 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

FORMULA

a(n) = n! - A088336(n).

CROSSREFS

Cf. A088336.

Sequence in context: A157534 A133799 A088436 * A061137 A012280 A002164

Adjacent sequences:  A088503 A088504 A088505 * A088507 A088508 A088509

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 13 2003

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Last modified February 15 11:55 EST 2012. Contains 205779 sequences.