A277212 - OEIS

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

A277212 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`5`
`2`		`20`
`3`		`65`
`4`		`190`
`5`		`505`
`6`		`1260`
`7`		`2970`
`8`		`6700`
`9`		`14535`
`10`		`30520`
`11`		`62235`
`12`		`123720`
`13`		`240340`
`14`		`457380`
`15`		`854190`
`16`		`1568230`
`17`		`2834120`
`18`		`5048140`
`19`		`8871450`
`20`		`15396690`
`21`		`26410860`
`22`		`44811440`
`23`		`75254240`
`24`		`125162100`
`25`		`206275505`
`26`		`337032360`
`27`		`546183425`
`28`		`878270360`
`29`		`1401857550`
`30`		`2221862260`

[1,5,20,65,190,505,1260,2970,6700,14535,30520, 62235,123720,240340,457380,854190,1568230,2834120, 5048140,8871450,15396690,26410860,44811440, 75254240,125162100,206275505,337032360,546183425, 878270360,1401857550,2221862260]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)