A109781 as tables, graphs or sounds

A109781 formatted as a simple table:

`n`		`a(n)`
`0`		`-1`
`1`		`3`
`2`		`-6`
`3`		`11`
`4`		`-27`
`5`		`60`
`6`		`-141`
`7`		`337`
`8`		`-808`
`9`		`1943`
`10`		`-4687`
`11`		`11306`
`12`		`-27287`
`13`		`65869`
`14`		`-159012`
`15`		`383877`
`16`		`-926753`
`17`		`2237366`
`18`		`-5401467`
`19`		`13040283`
`20`		`-31482014`
`21`		`76004289`
`22`		`-183490573`
`23`		`442985412`
`24`		`-1069461373`
`25`		`2581908135`
`26`		`-6233277618`
`27`		`15048463343`
`28`		`-36330204279`
`29`		`87708871872`
`30`		`-211747947993`

[-1,3,-6,11,-27,60,-141,337,-808,1943,-4687,11306, -27287,65869,-159012,383877,-926753,2237366, -5401467,13040283,-31482014,76004289,-183490573, 442985412,-1069461373,2581908135,-6233277618, 15048463343,-36330204279,87708871872, -211747947993]

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

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