id:A096471 - OEIS Search Results

Search: id:A096471

Displaying 1-1 of 1 results found.

page 1

Number of degree-n permutations with exactly one even cycle.

+0
2

1, 3, 12, 60, 345, 2415, 18480, 166320, 1596105, 17557155, 202951980, 2638375740, 35703612945, 535554194175, 8307234936000, 141222993912000, 2470641012464625, 46942179236827875, 914462992955011500 (list; graph; listen)

	OFFSET	`2,2`
	FORMULA	`E.g.f.: -1/2((1+x)/(1-x))^(1/2)ln(1-x^2).`
	CROSSREFS	`Cf. A060523, A028353.` `Sequence in context: A128602 A092803 A020052 this_sequence A140097 A105227 A000258` `Adjacent sequences: A096468 A096469 A096470 this_sequence A096472 A096473 A096474`
	KEYWORD	`easy,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 13 2004`

page 1

Search completed in 0.002 seconds

Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research