A000020 as tables, graphs or sounds

A000020 formatted as a simple table:

`n`		`a(n)`
`1`		`2`
`2`		`1`
`3`		`2`
`4`		`2`
`5`		`6`
`6`		`6`
`7`		`18`
`8`		`16`
`9`		`48`
`10`		`60`
`11`		`176`
`12`		`144`
`13`		`630`
`14`		`756`
`15`		`1800`
`16`		`2048`
`17`		`7710`
`18`		`7776`
`19`		`27594`
`20`		`24000`
`21`		`84672`
`22`		`120032`
`23`		`356960`
`24`		`276480`
`25`		`1296000`
`26`		`1719900`
`27`		`4202496`
`28`		`4741632`
`29`		`18407808`
`30`		`17820000`
`31`		`69273666`
`32`		`67108864`
`33`		`211016256`

[2,1,2,2,6,6,18,16,48,60,176,144,630,756,1800, 2048,7710,7776,27594,24000,84672,120032,356960, 276480,1296000,1719900,4202496,4741632,18407808, 17820000,69273666,67108864,211016256]

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research