A020009 as tables, graphs or sounds

A020009 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`8`
`5`		`35`
`6`		`192`
`7`		`1255`
`8`		`9471`
`9`		`80933`
`10`		`772545`
`11`		`8146834`
`12`		`94058896`
`13`		`1180011610`
`14`		`15983793633`
`15`		`232491543753`
`16`		`3614186725612`
`17`		`59798362187392`
`18`		`1049189445651507`
`19`		`19457695173900667`
`20`		`380309496580785766`

[1,1,1,2,8,35,192,1255,9471,80933,772545,8146834, 94058896,1180011610,15983793633,232491543753, 3614186725612,59798362187392,1049189445651507, 19457695173900667,380309496580785766]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research