A218684 - OEIS

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

A218684 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`2`
`4`		`7`
`5`		`18`
`6`		`96`
`7`		`260`
`8`		`1851`
`9`		`5270`
`10`		`46515`
`11`		`137942`
`12`		`1447202`
`13`		`4433772`
`14`		`53787706`
`15`		`169169912`
`16`		`2326986783`
`17`		`7477418982`
`18`		`114916173009`
`19`		`375898894514`
`20`		`6380455164161`
`21`		`21185872231238`
`22`		`393499602818322`
`23`		`1323362744628080`
`24`		`26691270481453228`
`25`		`90755667374332324`

[1,0,1,2,7,18,96,260,1851,5270,46515,137942, 1447202,4433772,53787706,169169912,2326986783, 7477418982,114916173009,375898894514, 6380455164161,21185872231238,393499602818322, 1323362744628080,26691270481453228, 90755667374332324]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 09:18 EDT 2024. Contains 371967 sequences. (Running on oeis4.)