A109780 as tables, graphs or sounds

A109780 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`32`
`4`		`310`
`5`		`4924`
`6`		`126648`
`7`		`4869192`
`8`		`258608880`
`9`		`17973530784`
`10`		`1576566817920`
`11`		`170028329630400`
`12`		`22092970356011520`
`13`		`3402396234446595840`
`14`		`612619882946124157440`
`15`		`127484451712085785228800`
`16`		`30358069092698014483200000`

[1,5,32,310,4924,126648,4869192,258608880, 17973530784,1576566817920,170028329630400, 22092970356011520,3402396234446595840, 612619882946124157440,127484451712085785228800, 30358069092698014483200000]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research