A009074 as tables, graphs or sounds

A009074 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`0`
`3`		`2`
`4`		`-12`
`5`		`44`
`6`		`-216`
`7`		`944`
`8`		`-5296`
`9`		`27632`
`10`		`-168128`
`11`		`975072`
`12`		`-5391680`
`13`		`27882048`
`14`		`38412672`
`15`		`-1986004224`
`16`		`61881368832`
`17`		`-850359527680`
`18`		`16576603568128`
`19`		`-222801125934592`
`20`		`4120672559178752`
`21`		`-57863671042155520`

[1,-1,0,2,-12,44,-216,944,-5296,27632,-168128, 975072,-5391680,27882048,38412672,-1986004224, 61881368832,-850359527680,16576603568128, -222801125934592,4120672559178752, -57863671042155520]

Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research