A055209 as tables, graphs or sounds

A055209 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`144`
`4`		`82944`
`5`		`1194393600`
`6`		`619173642240000`
`7`		`15728001190723584000000`
`8`		`25569049282962188245401600000000`
`9`		`3366980847587422591723894776791040000000000`
`10`		`44337041641882947649156022595410930014617600000000000000`

[1,1,4,144,82944,1194393600,619173642240000, 15728001190723584000000, 25569049282962188245401600000000, 3366980847587422591723894776791040000000000, 44337041641882947649156022595410930014617600000000000000]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research