A055997 as tables, graphs or sounds

A055997 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`9`
`4`		`50`
`5`		`289`
`6`		`1682`
`7`		`9801`
`8`		`57122`
`9`		`332929`
`10`		`1940450`
`11`		`11309769`
`12`		`65918162`
`13`		`384199201`
`14`		`2239277042`
`15`		`13051463049`
`16`		`76069501250`
`17`		`443365544449`
`18`		`2584123765442`
`19`		`15061377048201`
`20`		`87784138523762`
`21`		`511643454094369`

[1,2,9,50,289,1682,9801,57122,332929,1940450, 11309769,65918162,384199201,2239277042, 13051463049,76069501250,443365544449, 2584123765442,15061377048201,87784138523762, 511643454094369]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research