A048781 - OEIS

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

A048781 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`2`
`5`		`5`
`6`		`13`
`7`		`35`
`8`		`86`
`9`		`250`
`10`		`687`
`11`		`2001`
`12`		`5897`
`13`		`17847`
`14`		`54683`
`15`		`170578`
`16`		`537468`
`17`		`1714312`
`18`		`5516392`
`19`		`17910741`
`20`		`58588966`
`21`		`193035920`
`22`		`640132185`
`23`		`2135841554`
`24`		`7167550473`
`25`		`24186506740`

[1,2,5,13,35,86,250,687,2001,5897,17847,54683, 170578,537468,1714312,5516392,17910741,58588966, 193035920,640132185,2135841554,7167550473, 24186506740]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)