A008506 as tables, graphs or sounds

A008506 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`14`
`2`		`105`
`3`		`560`
`4`		`2380`
`5`		`8568`
`6`		`27132`
`7`		`77520`
`8`		`203490`
`9`		`497420`
`10`		`1144066`
`11`		`2496144`
`12`		`5200300`
`13`		`10400599`
`14`		`20058286`
`15`		`37442055`
`16`		`67863355`
`17`		`119757470`
`18`		`206244507`
`19`		`347346468`
`20`		`573088920`
`21`		`927780270`
`22`		`1475840380`

[1,14,105,560,2380,8568,27132,77520,203490,497420, 1144066,2496144,5200300,10400599,20058286, 37442055,67863355,119757470,206244507,347346468, 573088920,927780270,1475840380]

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

AT&T Labs Research