A058353 as tables, graphs or sounds

A058353 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`12`
`4`		`40`
`5`		`120`
`6`		`396`
`7`		`1260`
`8`		`4176`
`9`		`13788`
`10`		`46240`
`11`		`155496`
`12`		`527160`
`13`		`1792804`
`14`		`6125028`
`15`		`20986020`
`16`		`72117632`
`17`		`248396792`
`18`		`857402748`
`19`		`2964896876`
`20`		`10269550040`
`21`		`35622420288`
`22`		`123727866768`
`23`		`430254861944`
`24`		`1497796242288`
`25`		`5219231003500`

[1,4,12,40,120,396,1260,4176,13788,46240,155496, 527160,1792804,6125028,20986020,72117632, 248396792,857402748,2964896876,10269550040, 35622420288,123727866768,430254861944, 1497796242288,5219231003500]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research