A056616 as tables, graphs or sounds

A056616 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`20`
`4`		`70`
`5`		`252`
`6`		`924`
`7`		`1144`
`8`		`12870`
`9`		`48620`
`10`		`184756`
`11`		`705432`
`12`		`2704156`
`13`		`10400600`
`14`		`40116600`
`15`		`155117520`
`16`		`200360130`
`17`		`466721244`
`18`		`9075135300`
`19`		`11781754600`
`20`		`137846528820`
`21`		`538257874440`
`22`		`140273264248`
`23`		`8233430727600`
`24`		`32247603683100`

[1,2,6,20,70,252,924,1144,12870,48620,184756, 705432,2704156,10400600,40116600,155117520, 200360130,466721244,9075135300,11781754600, 137846528820,538257874440,140273264248, 8233430727600,32247603683100]

Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

AT&T Labs Research