A109731 - OEIS

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

A109731 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`-4`
`2`		`-6`
`3`		`15`
`4`		`23`
`5`		`-56`
`6`		`-86`
`7`		`209`
`8`		`321`
`9`		`-780`
`10`		`-1198`
`11`		`2911`
`12`		`4471`
`13`		`-10864`
`14`		`-16686`
`15`		`40545`
`16`		`62273`
`17`		`-151316`
`18`		`-232406`
`19`		`564719`
`20`		`867351`
`21`		`-2107560`
`22`		`-3236998`
`23`		`7865521`
`24`		`12080641`
`25`		`-29354524`
`26`		`-45085566`
`27`		`109552575`
`28`		`168261623`
`29`		`-408855776`

[1,-4,-6,15,23,-56,-86,209,321,-780,-1198,2911, 4471,-10864,-16686,40545,62273,-151316,-232406, 564719,867351,-2107560,-3236998,7865521,12080641, -29354524,-45085566,109552575,168261623, -408855776]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 29 02:27 EDT 2024. Contains 372097 sequences. (Running on oeis4.)