A013193 as tables, graphs or sounds

A013193 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`4`
`3`		`-15`
`4`		`93`
`5`		`-633`
`6`		`5381`
`7`		`-51506`
`8`		`565957`
`9`		`-6922205`
`10`		`93992413`
`11`		`-1398890284`
`12`		`22689478823`
`13`		`-398141898399`
`14`		`7519118564551`
`15`		`-152056970221072`
`16`		`3278894568674073`
`17`		`-75103176871966409`
`18`		`1821102601528126265`

[1,-1,4,-15,93,-633,5381,-51506,565957,-6922205, 93992413,-1398890284,22689478823,-398141898399, 7519118564551,-152056970221072,3278894568674073, -75103176871966409,1821102601528126265]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research