A001571 as tables, graphs or sounds

A001571 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`9`
`3`		`35`
`4`		`132`
`5`		`494`
`6`		`1845`
`7`		`6887`
`8`		`25704`
`9`		`95930`
`10`		`358017`
`11`		`1336139`
`12`		`4986540`
`13`		`18610022`
`14`		`69453549`
`15`		`259204175`
`16`		`967363152`
`17`		`3610248434`
`18`		`13473630585`
`19`		`50284273907`
`20`		`187663465044`
`21`		`700369586270`
`22`		`2613814880037`
`23`		`9754889933879`
`24`		`36405744855480`

[0,2,9,35,132,494,1845,6887,25704,95930,358017, 1336139,4986540,18610022,69453549,259204175, 967363152,3610248434,13473630585,50284273907, 187663465044,700369586270,2613814880037, 9754889933879,36405744855480]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research