A051606 as tables, graphs or sounds

A051606 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`9`
`2`		`108`
`3`		`1620`
`4`		`29160`
`5`		`612360`
`6`		`14696640`
`7`		`396809280`
`8`		`11904278400`
`9`		`392841187200`
`10`		`14142282739200`
`11`		`551549026828800`
`12`		`23165059126809600`
`13`		`1042427660706432000`
`14`		`50036527713908736000`
`15`		`2551862913409345536000`
`16`		`137800597324104658944000`

[1,9,108,1620,29160,612360,14696640,396809280, 11904278400,392841187200,14142282739200, 551549026828800,23165059126809600, 1042427660706432000,50036527713908736000, 2551862913409345536000,137800597324104658944000]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research