A053730 as tables, graphs or sounds

A053730 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`20`
`4`		`64`
`5`		`192`
`6`		`544`
`7`		`1472`
`8`		`3840`
`9`		`9728`
`10`		`24064`
`11`		`58368`
`12`		`139264`
`13`		`327680`
`14`		`761856`
`15`		`1753088`
`16`		`3997696`
`17`		`9043968`
`18`		`20316160`
`19`		`45350912`
`20`		`100663296`
`21`		`222298112`
`22`		`488636416`
`23`		`1069547520`
`24`		`2332033024`
`25`		`5066719232`
`26`		`10972299264`
`27`		`23689428992`

[1,2,6,20,64,192,544,1472,3840,9728,24064,58368, 139264,327680,761856,1753088,3997696,9043968, 20316160,45350912,100663296,222298112,488636416, 1069547520,2332033024,5066719232,10972299264, 23689428992]

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

AT&T Labs Research