A117972 as tables, graphs or sounds

A117972 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`3`
`3`		`-45`
`4`		`315`
`5`		`-14175`
`6`		`467775`
`7`		`-42567525`
`8`		`638512875`
`9`		`-97692469875`
`10`		`9280784638125`
`11`		`-2143861251406875`
`12`		`147926426347074375`
`13`		`-48076088562799171875`
`14`		`9086380738369043484375`
`15`		`-3952575621190533915703125`

[1,-1,3,-45,315,-14175,467775,-42567525,638512875, -97692469875,9280784638125,-2143861251406875, 147926426347074375,-48076088562799171875, 9086380738369043484375, -3952575621190533915703125]

Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

AT&T Labs Research