A104470 as tables, graphs or sounds

A104470 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`9`
`4`		`44`
`5`		`270`
`6`		`1938`
`7`		`15764`
`8`		`143776`
`9`		`1453302`
`10`		`16128420`
`11`		`194980478`
`12`		`2550746400`
`13`		`35904118874`
`14`		`541097840528`
`15`		`8693290587030`
`16`		`148324680742912`
`17`		`2678504175897990`
`18`		`51039398650102776`
`19`		`1023458322628129882`

[1,1,1,9,44,270,1938,15764,143776,1453302, 16128420,194980478,2550746400,35904118874, 541097840528,8693290587030,148324680742912, 2678504175897990,51039398650102776, 1023458322628129882]

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research