A318121 - OEIS

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

A318121 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`15`
`4`		`65`
`5`		`269`
`6`		`1205`
`7`		`5325`
`8`		`24064`
`9`		`108849`
`10`		`496790`
`11`		`2275492`
`12`		`10470720`
`13`		`48325984`
`14`		`223721404`
`15`		`1038182441`
`16`		`4828274432`
`17`		`22497132116`
`18`		`105001996350`
`19`		`490816448220`
`20`		`2297356108318`
`21`		`10766317435860`
`22`		`50511178395306`
`23`		`237217429972191`
`24`		`1115084064063866`
`25`		`5246116796164594`

[1,1,4,15,65,269,1205,5325,24064,108849,496790, 2275492,10470720,48325984,223721404,1038182441, 4828274432,22497132116,105001996350,490816448220, 2297356108318,10766317435860,50511178395306, 237217429972191,1115084064063866,5246116796164594]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)