A101981 - OEIS

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

A101981 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`4`
`4`		`-33`
`5`		`456`
`6`		`-9460`
`7`		`274800`
`8`		`-10643745`
`9`		`530052880`
`10`		`-32995478376`
`11`		`2510382661920`
`12`		`-229195817258100`
`13`		`24730000147369440`
`14`		`-3113066087894608560`
`15`		`452168671458789789504`
`16`		`-75059305956331837485345`
`17`		`14121026957032156557396000`
`18`		`-2988687741694684876495689040`

[0,1,-1,4,-33,456,-9460,274800,-10643745, 530052880,-32995478376,2510382661920, -229195817258100,24730000147369440, -3113066087894608560,452168671458789789504, -75059305956331837485345, 14121026957032156557396000, -2988687741694684876495689040]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 07:34 EDT 2024. Contains 371905 sequences. (Running on oeis4.)