A009772 as tables, graphs or sounds

A009772 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`1`
`4`		`2`
`5`		`-29`
`6`		`194`
`7`		`-1049`
`8`		`4472`
`9`		`-6299`
`10`		`-171736`
`11`		`2993101`
`12`		`-34111408`
`13`		`302131831`
`14`		`-1763868016`
`15`		`-4643279549`
`16`		`370023946112`
`17`		`-7698953963639`
`18`		`115221639807104`
`19`		`-1282442213912999`
`20`		`6786946897932032`
`21`		`150369505621009291`

[0,1,-1,1,2,-29,194,-1049,4472,-6299,-171736, 2993101,-34111408,302131831,-1763868016, -4643279549,370023946112,-7698953963639, 115221639807104,-1282442213912999, 6786946897932032,150369505621009291]

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research