A071976 as tables, graphs or sounds

A071976 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`20`
`5`		`70`
`6`		`252`
`7`		`924`
`8`		`3432`
`9`		`12870`
`10`		`48619`
`11`		`184735`
`12`		`705222`
`13`		`2702609`
`14`		`10390940`
`15`		`40062132`
`16`		`154830696`
`17`		`599641425`
`18`		`2326640877`
`19`		`9042327525`
`20`		`35194002709`
`21`		`137160956815`
`22`		`535193552973`
`23`		`2090558951396`
`24`		`8174176541450`
`25`		`31990402045260`

[1,2,6,20,70,252,924,3432,12870,48619,184735, 705222,2702609,10390940,40062132,154830696, 599641425,2326640877,9042327525,35194002709, 137160956815,535193552973,2090558951396, 8174176541450,31990402045260]

Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research