A091552 as tables, graphs or sounds

A091552 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`308`
`4`		`154840`
`5`		`121284800`
`6`		`138146444800`
`7`		`216595133081600`
`8`		`448169865375232000`
`9`		`1184352885735219200000`
`10`		`3894384547720687820800000`
`11`		`15599967808704696966348800000`
`12`		`74806554280938737689393561600000`

[1,308,154840,121284800,138146444800, 216595133081600,448169865375232000, 1184352885735219200000,3894384547720687820800000, 15599967808704696966348800000, 74806554280938737689393561600000]

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

AT&T Labs Research