A012340 - OEIS

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

A012340 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`20`
`3`		`488`
`4`		`22416`
`5`		`1680672`
`6`		`187766592`
`7`		`29343408768`
`8`		`6124074217728`
`9`		`1647634955248128`
`10`		`555774895924564992`
`11`		`229837057464353187840`
`12`		`114397631096541960376320`
`13`		`67482635629160164765409280`

[1,2,20,488,22416,1680672,187766592,29343408768, 6124074217728,1647634955248128,555774895924564992, 229837057464353187840,114397631096541960376320, 67482635629160164765409280]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)