A137610 as tables, graphs or sounds

A137610 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`13`
`3`		`180`
`4`		`3844`
`5`		`110908`
`6`		`4030740`
`7`		`176640072`
`8`		`9059743648`
`9`		`532179428700`
`10`		`35219852623888`
`11`		`2592514449263656`
`12`		`210072673380786552`
`13`		`18579938909696752728`
`14`		`1780987027765227959096`
`15`		`183907984490301947455872`

[1,2,13,180,3844,110908,4030740,176640072, 9059743648,532179428700,35219852623888, 2592514449263656,210072673380786552, 18579938909696752728,1780987027765227959096, 183907984490301947455872]

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

AT&T Labs Research