A057819 as tables, graphs or sounds

A057819 formatted as a simple table:

`n`		`a(n)`
`0`		`4`
`1`		`9`
`2`		`32`
`3`		`119`
`4`		`444`
`5`		`1657`
`6`		`6184`
`7`		`23079`
`8`		`86132`
`9`		`321449`
`10`		`1199664`
`11`		`4477207`
`12`		`16709164`
`13`		`62359449`
`14`		`232728632`
`15`		`868555079`
`16`		`3241491684`
`17`		`12097411657`
`18`		`45148154944`
`19`		`168495208119`
`20`		`628832677532`
`21`		`2346835502009`
`22`		`8758509330504`
`23`		`32687201820007`

[4,9,32,119,444,1657,6184,23079,86132,321449, 1199664,4477207,16709164,62359449,232728632, 868555079,3241491684,12097411657,45148154944, 168495208119,628832677532,2346835502009, 8758509330504,32687201820007]

Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

AT&T Labs Research