A003408 as tables, graphs or sounds

A003408 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`9`
`2`		`66`
`3`		`455`
`4`		`3060`
`5`		`20349`
`6`		`134596`
`7`		`888030`
`8`		`5852925`
`9`		`38567100`
`10`		`254186856`
`11`		`1676056044`
`12`		`11058116888`
`13`		`73006209045`
`14`		`482320623240`
`15`		`3188675231420`
`16`		`21094923659355`
`17`		`139646485582065`
`18`		`925029565741050`
`19`		`6131164307078475`

[1,9,66,455,3060,20349,134596,888030,5852925, 38567100,254186856,1676056044,11058116888, 73006209045,482320623240,3188675231420, 21094923659355,139646485582065,925029565741050, 6131164307078475]

Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research