A270913 - OEIS

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

A270913 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`3`
`3`		`13`
`4`		`51`
`5`		`206`
`6`		`855`
`7`		`3585`
`8`		`15155`
`9`		`64525`
`10`		`276278`
`11`		`1188353`
`12`		`5130999`
`13`		`22226049`
`14`		`96544003`
`15`		`420368858`
`16`		`1834203955`
`17`		`8018057345`
`18`		`35107961175`
`19`		`153950675585`
`20`		`675978772326`
`21`		`2971700764941`
`22`		`13078268135683`
`23`		`57613905606273`
`24`		`254038914924791`
`25`		`1121081799217231`

[1,1,3,13,51,206,855,3585,15155,64525,276278, 1188353,5130999,22226049,96544003,420368858, 1834203955,8018057345,35107961175,153950675585, 675978772326,2971700764941,13078268135683, 57613905606273,254038914924791,1121081799217231]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)