A009057 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A009057 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`-3`
`2`		`-15`
`3`		`21`
`4`		`1953`
`5`		`32461`
`6`		`77649`
`7`		`-18557595`
`8`		`-894805183`
`9`		`-21405607651`
`10`		`421226202033`
`11`		`90171090228021`
`12`		`6418365899545825`
`13`		`230309031988304109`
`14`		`-11126456208720437487`
`15`		`-3093396343171182148731`
`16`		`-342554566975833968005503`

[1,-3,-15,21,1953,32461,77649,-18557595, -894805183,-21405607651,421226202033, 90171090228021,6418365899545825, 230309031988304109,-11126456208720437487, -3093396343171182148731,-342554566975833968005503]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 08:28 EDT 2024. Contains 371782 sequences. (Running on oeis4.)