A030813 - OEIS

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

A030813 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`4`
`3`		`12`
`4`		`48`
`5`		`240`
`6`		`1443`
`7`		`10105`
`8`		`80842`
`9`		`727580`
`10`		`7275803`
`11`		`80033833`
`12`		`960405999`
`13`		`12485277998`
`14`		`174793891980`
`15`		`2621908379701`
`16`		`41950534075224`
`17`		`713159079278809`
`18`		`12836863427018578`
`19`		`243900405113352992`
`20`		`4878008102267059852`

[2,4,12,48,240,1443,10105,80842,727580,7275803, 80033833,960405999,12485277998,174793891980, 2621908379701,41950534075224,713159079278809, 12836863427018578,243900405113352992, 4878008102267059852]

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 11 07:13 EDT 2024. Contains 375059 sequences. (Running on oeis4.)