A047889 as tables, graphs or sounds

A047889 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`24`
`5`		`119`
`6`		`694`
`7`		`4582`
`8`		`33324`
`9`		`261808`
`10`		`2190688`
`11`		`19318688`
`12`		`178108704`
`13`		`1705985883`
`14`		`16891621166`
`15`		`172188608886`
`16`		`1801013405436`
`17`		`19274897768196`
`18`		`210573149141896`
`19`		`2343553478425816`
`20`		`26525044132374656`
`21`		`304856947930144656`

[1,1,2,6,24,119,694,4582,33324,261808,2190688, 19318688,178108704,1705985883,16891621166, 172188608886,1801013405436,19274897768196, 210573149141896,2343553478425816, 26525044132374656,304856947930144656]

Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

AT&T Labs Research