A263478 - OEIS

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

A263478 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`9`
`3`		`55`
`4`		`214`
`5`		`615`
`6`		`1451`
`7`		`3829`
`8`		`60180`
`9`		`939045`
`10`		`8732485`
`11`		`56961531`
`12`		`289887214`
`13`		`1229099287`
`14`		`4756606869`
`15`		`24218431805`
`16`		`233925901576`
`17`		`2661527233449`
`18`		`25685325408201`
`19`		`203451565638511`
`20`		`1356903584035110`
`21`		`7832822232934951`
`22`		`40022453239462639`
`23`		`184228949831881593`

[1,9,55,214,615,1451,3829,60180,939045,8732485, 56961531,289887214,1229099287,4756606869, 24218431805,233925901576,2661527233449, 25685325408201,203451565638511,1356903584035110, 7832822232934951,40022453239462639, 184228949831881593]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)