A111642 - OEIS

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

A111642 as a simple table

`n`		`a(n)`
`0`		`2`
`1`		`-12`
`2`		`54`
`3`		`-224`
`4`		`890`
`5`		`-3452`
`6`		`13198`
`7`		`-50016`
`8`		`188498`
`9`		`-707916`
`10`		`2652678`
`11`		`-9925760`
`12`		`37105802`
`13`		`-138631292`
`14`		`517742494`
`15`		`-1933118784`
`16`		`7216615970`
`17`		`-26937891852`
`18`		`100545928278`
`19`		`-375272321696`
`20`		`1400607336218`
`21`		`-5227311479036`
`22`		`19509011469358`
`23`		`-72809634633120`
`24`		`271731700422002`

[2,-12,54,-224,890,-3452,13198,-50016,188498, -707916,2652678,-9925760,37105802,-138631292, 517742494,-1933118784,7216615970,-26937891852, 100545928278,-375272321696,1400607336218, -5227311479036,19509011469358,-72809634633120, 271731700422002]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)