A098521 - OEIS

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

A098521 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`1`
`3`		`3`
`4`		`14`
`5`		`50`
`6`		`195`
`7`		`721`
`8`		`2716`
`9`		`10116`
`10`		`37845`
`11`		`141295`
`12`		`528330`
`13`		`1975766`
`14`		`7395479`
`15`		`27698685`
`16`		`103821240`
`17`		`389410568`
`18`		`1461605481`
`19`		`5489516955`
`20`		`20630539910`
`21`		`77579118330`
`22`		`291893775019`
`23`		`1098848179561`
`24`		`4138773239892`
`25`		`15596070165900`
`26`		`58797332264125`
`27`		`221762856917511`
`28`		`836756771788098`

[0,0,1,3,14,50,195,721,2716,10116,37845,141295, 528330,1975766,7395479,27698685,103821240, 389410568,1461605481,5489516955,20630539910, 77579118330,291893775019,1098848179561, 4138773239892,15596070165900,58797332264125, 221762856917511,836756771788098]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 03:16 EDT 2024. Contains 371782 sequences. (Running on oeis4.)