A006523 as tables, graphs or sounds

A006523 formatted as a simple table:

`n`		`a(n)`
`1`		`2`
`2`		`240`
`3`		`725760`
`4`		`12454041600`
`5`		`711374856192000`
`6`		`102181884343418880000`
`7`		`31022420086661971968000000`
`8`		`17683523987479403909087232000000`
`9`		`17366635237623772991036388802560000000`

[2,240,725760,12454041600,711374856192000, 102181884343418880000,31022420086661971968000000, 17683523987479403909087232000000, 17366635237623772991036388802560000000]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research