A006678 - OEIS

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

A006678 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`1`
`3`		`6`
`4`		`39`
`5`		`390`
`6`		`4815`
`7`		`73080`
`8`		`1304415`
`9`		`26847450`
`10`		`625528575`
`11`		`16279193700`
`12`		`468022452975`
`13`		`14731683916950`
`14`		`503880434632575`
`15`		`18609309606888000`
`16`		`738057377647965375`
`17`		`31286068076704691250`
`18`		`1411602439003747365375`
`19`		`67543694966494692445500`
`20`		`3416288904242387117319375`

[0,1,1,6,39,390,4815,73080,1304415,26847450, 625528575,16279193700,468022452975,14731683916950, 503880434632575,18609309606888000, 738057377647965375,31286068076704691250, 1411602439003747365375,67543694966494692445500, 3416288904242387117319375]

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 11 04:26 EDT 2024. Contains 375814 sequences. (Running on oeis4.)