A150221 - OEIS

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

A150221 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`21`
`4`		`83`
`5`		`349`
`6`		`1528`
`7`		`6885`
`8`		`31663`
`9`		`147881`
`10`		`698854`
`11`		`3333119`
`12`		`16013223`
`13`		`77383680`
`14`		`375742768`
`15`		`1831622869`
`16`		`8957731740`
`17`		`43928634211`
`18`		`215923994375`
`19`		`1063428003467`
`20`		`5246221788939`
`21`		`25918820316508`
`22`		`128212232578680`
`23`		`634919400291523`
`24`		`3147189891410274`
`25`		`15613197779383373`
`26`		`77514351786069528`

[1,2,6,21,83,349,1528,6885,31663,147881,698854, 3333119,16013223,77383680,375742768,1831622869, 8957731740,43928634211,215923994375,1063428003467, 5246221788939,25918820316508,128212232578680, 634919400291523,3147189891410274, 15613197779383373,77514351786069528]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)