A107284 - OEIS

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

A107284 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`20`
`4`		`74`
`5`		`284`
`6`		`1116`
`7`		`4424`
`8`		`17622`
`9`		`70340`
`10`		`281076`
`11`		`1123736`
`12`		`4493828`
`13`		`17973080`
`14`		`71887896`
`15`		`287542736`
`16`		`1150153322`
`17`		`4600578044`
`18`		`18402241836`
`19`		`73608826664`
`20`		`294435025580`
`21`		`1177739540168`
`22`		`4710957036936`
`23`		`18843825900272`
`24`		`75375299107260`

[1,2,6,20,74,284,1116,4424,17622,70340,281076, 1123736,4493828,17973080,71887896,287542736, 1150153322,4600578044,18402241836,73608826664, 294435025580,1177739540168,4710957036936, 18843825900272,75375299107260]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)