A009781 - OEIS

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A009781 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`-3`
`4`		`12`
`5`		`-5`
`6`		`-75`
`7`		`203`
`8`		`-1232`
`9`		`16245`
`10`		`-44685`
`11`		`-957671`
`12`		`11106876`
`13`		`-34555105`
`14`		`-281002631`
`15`		`4852910775`
`16`		`-67849574400`
`17`		`823102605865`
`18`		`-1467960664185`
`19`		`-158552006816779`
`20`		`2993025524196940`
`21`		`-21779819623624125`

[0,1,-1,-3,12,-5,-75,203,-1232,16245,-44685, -957671,11106876,-34555105,-281002631,4852910775, -67849574400,823102605865,-1467960664185, -158552006816779,2993025524196940, -21779819623624125]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)