A002801 - OEIS

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

A002801 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`8`
`4`		`50`
`5`		`418`
`6`		`4348`
`7`		`54016`
`8`		`779804`
`9`		`12824540`
`10`		`236648024`
`11`		`4841363104`
`12`		`108748223128`
`13`		`2660609220952`
`14`		`70422722065040`
`15`		`2005010410792832`
`16`		`61098981903602192`
`17`		`1984186236246187024`
`18`		`68407835576255308576`
`19`		`2495374564069015050880`
`20`		`96019859122742736121376`
`21`		`3886906732751071879958816`
`22`		`165120572466718493379680192`

[1,1,2,8,50,418,4348,54016,779804,12824540, 236648024,4841363104,108748223128,2660609220952, 70422722065040,2005010410792832,61098981903602192, 1984186236246187024,68407835576255308576, 2495374564069015050880,96019859122742736121376, 3886906732751071879958816, 165120572466718493379680192]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 16 03:28 EDT 2024. Contains 371696 sequences. (Running on oeis4.)