A109590 as tables, graphs or sounds

A109590 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`-2`
`2`		`-2`
`3`		`-3`
`4`		`-24`
`5`		`30`
`6`		`-1584`
`7`		`18648`
`8`		`-417024`
`9`		`9009792`
`10`		`-234809280`
`11`		`6704112096`
`12`		`-213138355968`
`13`		`7406611617600`
`14`		`-280001933761536`
`15`		`11429619375628800`
`16`		`-501128794469154816`
`17`		`23484526696292281344`
`18`		`-1171437744670467637248`
`19`		`61965733479803762540544`

[0,-2,-2,-3,-24,30,-1584,18648,-417024,9009792, -234809280,6704112096,-213138355968,7406611617600, -280001933761536,11429619375628800, -501128794469154816,23484526696292281344, -1171437744670467637248,61965733479803762540544]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research