A013115 as tables, graphs or sounds

A013115 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`-2`
`2`		`4`
`3`		`-16`
`4`		`88`
`5`		`-560`
`6`		`4184`
`7`		`-37952`
`8`		`398848`
`9`		`-4613632`
`10`		`58835456`
`11`		`-835257344`
`12`		`12993783424`
`13`		`-217535518720`
`14`		`3911934210560`
`15`		`-75654182936576`
`16`		`1562951627091968`
`17`		`-34235182359642112`
`18`		`793328025614454784`

[1,-2,4,-16,88,-560,4184,-37952,398848,-4613632, 58835456,-835257344,12993783424,-217535518720, 3911934210560,-75654182936576,1562951627091968, -34235182359642112,793328025614454784]

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

AT&T Labs Research