A001320 as tables, graphs or sounds

A001320 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`14`
`4`		`240`
`5`		`63488`
`6`		`4227858432`
`7`		`18302628885633695744`
`8`		`338953138925153547590470800371487866880`
`9`		`115565932813024562229384322928592814283244066726840484812818018414147674308608`

[1,3,14,240,63488,4227858432,18302628885633695744, 338953138925153547590470800371487866880, 115565932813024562229384322928592814283244066726840484812818018414147674308608]

Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research