A001791 as tables, graphs or sounds

A001791 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`4`
`3`		`15`
`4`		`56`
`5`		`210`
`6`		`792`
`7`		`3003`
`8`		`11440`
`9`		`43758`
`10`		`167960`
`11`		`646646`
`12`		`2496144`
`13`		`9657700`
`14`		`37442160`
`15`		`145422675`
`16`		`565722720`
`17`		`2203961430`
`18`		`8597496600`
`19`		`33578000610`
`20`		`131282408400`
`21`		`513791607420`
`22`		`2012616400080`
`23`		`7890371113950`
`24`		`30957699535776`

[0,1,4,15,56,210,792,3003,11440,43758,167960, 646646,2496144,9657700,37442160,145422675, 565722720,2203961430,8597496600,33578000610, 131282408400,513791607420,2012616400080, 7890371113950,30957699535776]

Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research