A213120 - OEIS

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

A213120 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`10`
`3`		`54`
`4`		`252`
`5`		`1110`
`6`		`4748`
`7`		`19964`
`8`		`83024`
`9`		`342678`
`10`		`1406748`
`11`		`5751636`
`12`		`23443240`
`13`		`95319484`
`14`		`386805112`
`15`		`1567130168`
`16`		`6340730552`
`17`		`25626393878`
`18`		`103472018492`
`19`		`417449893988`
`20`		`1682982404072`
`21`		`6780908053268`
`22`		`27306234108392`
`23`		`109907864408648`

[1,10,54,252,1110,4748,19964,83024,342678,1406748, 5751636,23443240,95319484,386805112,1567130168, 6340730552,25626393878,103472018492,417449893988, 1682982404072,6780908053268,27306234108392, 109907864408648]

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 21 16:23 EDT 2024. Contains 375353 sequences. (Running on oeis4.)