A000261 as tables, graphs or sounds

A000261 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`3`
`4`		`13`
`5`		`71`
`6`		`465`
`7`		`3539`
`8`		`30637`
`9`		`296967`
`10`		`3184129`
`11`		`37401155`
`12`		`477471021`
`13`		`6581134823`
`14`		`97388068753`
`15`		`1539794649171`
`16`		`25902759280525`
`17`		`461904032857319`
`18`		`8702813980639617`
`19`		`172743930157869827`
`20`		`3602826440828270029`

[0,1,3,13,71,465,3539,30637,296967,3184129, 37401155,477471021,6581134823,97388068753, 1539794649171,25902759280525,461904032857319, 8702813980639617,172743930157869827, 3602826440828270029]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research