A064852 as tables, graphs or sounds

A064852 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`0`
`4`		`1`
`5`		`4`
`6`		`18`
`7`		`102`
`8`		`624`
`9`		`4476`
`10`		`36248`
`11`		`329890`
`12`		`3326054`
`13`		`36846276`
`14`		`444783906`
`15`		`5811885808`
`16`		`81729607680`
`17`		`1230752346352`
`18`		`19760412095328`
`19`		`336967037143578`
`20`		`6082255011151724`
`21`		`115852476579789984`
`22`		`2322315553090615850`

[1,0,0,1,4,18,102,624,4476,36248,329890,3326054, 36846276,444783906,5811885808,81729607680, 1230752346352,19760412095328,336967037143578, 6082255011151724,115852476579789984, 2322315553090615850]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research