A220101 - OEIS

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

A220101 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`6`
`4`		`27`
`5`		`112`
`6`		`450`
`7`		`1782`
`8`		`7007`
`9`		`27456`
`10`		`107406`
`11`		`419900`
`12`		`1641486`
`13`		`6418656`
`14`		`25110020`
`15`		`98285670`
`16`		`384942375`
`17`		`1508593920`
`18`		`5915896470`
`19`		`23213240820`
`20`		`91140287370`
`21`		`358042932000`
`22`		`1407342229020`
`23`		`5534695100220`
`24`		`21777424274502`
`25`		`85729014099072`
`26`		`337635166767500`

[0,1,6,27,112,450,1782,7007,27456,107406,419900, 1641486,6418656,25110020,98285670,384942375, 1508593920,5915896470,23213240820,91140287370, 358042932000,1407342229020,5534695100220, 21777424274502,85729014099072,337635166767500]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 09:32 EDT 2024. Contains 371967 sequences. (Running on oeis4.)