A109021 - OEIS

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

A109021 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`8`
`3`		`88`
`4`		`720`
`5`		`5360`
`6`		`38488`
`7`		`272328`
`8`		`1915040`
`9`		`13431520`
`10`		`94099368`
`11`		`658931768`
`12`		`4613230960`
`13`		`32294742480`
`14`		`226069574648`
`15`		`1582506154408`
`16`		`11077600476480`
`17`		`77543375522240`
`18`		`542804145216328`
`19`		`3799630566196248`
`20`		`26597418612419600`
`21`		`186181944234074800`
`22`		`1303273651479936408`

[0,0,8,88,720,5360,38488,272328,1915040,13431520, 94099368,658931768,4613230960,32294742480, 226069574648,1582506154408,11077600476480, 77543375522240,542804145216328,3799630566196248, 26597418612419600,186181944234074800, 1303273651479936408]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)