id:A088336 - OEIS Search Results

Search: id:A088336

Displaying 1-1 of 1 results found.

page 1

Number of permutations in the symmetric group S_n that have even number of transpositions in their cycle decomposition.

+0
5

1, 1, 3, 18, 90, 480, 3360, 27720, 249480, 2479680, 27276480, 327650400 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`E.g.f.: (exp(-x^2)+1)/(1-x)/2. - Vladeta Jovovic (vladeta(AT)Eunet.yu), Nov 09 2003`
	CROSSREFS	`Cf. A062282.` `Sequence in context: A037295 A124811 A006568 this_sequence A133594 A092691 A064671` `Adjacent sequences: A088333 A088334 A088335 this_sequence A088337 A088338 A088339`
	KEYWORD	`nonn`
	AUTHOR	`Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 07 2003`

page 1

Search completed in 0.002 seconds

Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.