A055602 as tables, graphs or sounds

A055602 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`4`
`3`		`45`
`4`		`432`
`5`		`4200`
`6`		`43200`
`7`		`476280`
`8`		`5644800`
`9`		`71850240`
`10`		`979776000`
`11`		`14270256000`
`12`		`221298739200`
`13`		`3642807168000`
`14`		`63465795993600`
`15`		`1167099373440000`
`16`		`22596613079040000`
`17`		`459548157100032000`
`18`		`9795631769763840000`

[0,4,45,432,4200,43200,476280,5644800,71850240, 979776000,14270256000,221298739200,3642807168000, 63465795993600,1167099373440000,22596613079040000, 459548157100032000,9795631769763840000]

Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research