A038065 - OEIS

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

A038065 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`-10`
`3`		`20`
`4`		`-60`
`5`		`204`
`6`		`-690`
`7`		`2340`
`8`		`-8160`
`9`		`29120`
`10`		`-104958`
`11`		`381300`
`12`		`-1397740`
`13`		`5162220`
`14`		`-19175130`
`15`		`71582716`
`16`		`-268431360`
`17`		`1010580540`
`18`		`-3817763040`
`19`		`14467258260`
`20`		`-54975528948`
`21`		`209430785460`
`22`		`-799645010850`
`23`		`3059510616420`

[4,-10,20,-60,204,-690,2340,-8160,29120,-104958, 381300,-1397740,5162220,-19175130,71582716, -268431360,1010580540,-3817763040,14467258260, -54975528948,209430785460,-799645010850, 3059510616420]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)