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A088335 Number of permutations in the symmetric group S_n such that the size of their centralizer is even. +0
1
0, 2, 4, 16, 96, 576, 4320, 31872, 298368, 3052800 (list; graph; listen)
OFFSET

1,2
FORMULA

a(n) = n! - A088994(n).

CROSSREFS

Cf. A088994.

Sequence in context: A052835 A009565 A009838 this_sequence A066318 A066952 A135249

Adjacent sequences: A088332 A088333 A088334 this_sequence A088336 A088337 A088338

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 07 2003

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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