A007317 - OEIS

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

A007317 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`15`
`5`		`51`
`6`		`188`
`7`		`731`
`8`		`2950`
`9`		`12235`
`10`		`51822`
`11`		`223191`
`12`		`974427`
`13`		`4302645`
`14`		`19181100`
`15`		`86211885`
`16`		`390248055`
`17`		`1777495635`
`18`		`8140539950`
`19`		`37463689775`
`20`		`173164232965`
`21`		`803539474345`
`22`		`3741930523740`
`23`		`17481709707825`
`24`		`81912506777200`
`25`		`384847173838501`
`26`		`1812610804416698`

[1,2,5,15,51,188,731,2950,12235,51822,223191, 974427,4302645,19181100,86211885,390248055, 1777495635,8140539950,37463689775,173164232965, 803539474345,3741930523740,17481709707825, 81912506777200,384847173838501,1812610804416698]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 18 08:04 EDT 2024. Contains 371769 sequences. (Running on oeis4.)