A221256 - OEIS

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

A221256 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`4`
`3`		`8`
`4`		`81`
`5`		`392`
`6`		`2500`
`7`		`14112`
`8`		`83521`
`9`		`484128`
`10`		`2829124`
`11`		`16473800`
`12`		`96059601`
`13`		`559785800`
`14`		`3262922884`
`15`		`19017180288`
`16`		`110841719041`
`17`		`646029804672`
`18`		`3765346202500`
`19`		`21946028005832`
`20`		`127910874833361`
`21`		`745519107896648`

[0,4,8,81,392,2500,14112,83521,484128,2829124, 16473800,96059601,559785800,3262922884, 19017180288,110841719041,646029804672, 3765346202500,21946028005832,127910874833361, 745519107896648]

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 14 06:39 EDT 2024. Contains 375146 sequences. (Running on oeis4.)