A150159 - OEIS

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

A150159 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`20`
`4`		`75`
`5`		`281`
`6`		`1124`
`7`		`4486`
`8`		`18639`
`9`		`77206`
`10`		`328890`
`11`		`1395906`
`12`		`6050956`
`13`		`26136456`
`14`		`114778979`
`15`		`502344204`
`16`		`2228393792`
`17`		`9853587549`
`18`		`44063941695`
`19`		`196458703812`
`20`		`884350126214`
`21`		`3969706072110`
`22`		`17968092289269`
`23`		`81115171940812`
`24`		`368869814023320`
`25`		`1673281530399285`
`26`		`7639806858020959`
`27`		`34800256117181418`

[1,2,6,20,75,281,1124,4486,18639,77206,328890, 1395906,6050956,26136456,114778979,502344204, 2228393792,9853587549,44063941695,196458703812, 884350126214,3969706072110,17968092289269, 81115171940812,368869814023320,1673281530399285, 7639806858020959,34800256117181418]

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 10 01:34 EDT 2024. Contains 374191 sequences. (Running on oeis4.)