A033321 as tables, graphs or sounds

A033321 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`21`
`5`		`79`
`6`		`311`
`7`		`1265`
`8`		`5275`
`9`		`22431`
`10`		`96900`
`11`		`424068`
`12`		`1876143`
`13`		`8377299`
`14`		`37704042`
`15`		`170870106`
`16`		`779058843`
`17`		`3571051579`
`18`		`16447100702`
`19`		`76073821946`
`20`		`353224531663`
`21`		`1645807790529`
`22`		`7692793487307`
`23`		`36061795278341`
`24`		`169498231169821`

[1,1,2,6,21,79,311,1265,5275,22431,96900,424068, 1876143,8377299,37704042,170870106,779058843, 3571051579,16447100702,76073821946,353224531663, 1645807790529,7692793487307,36061795278341, 169498231169821]

Last modified December 5 17:24 EST 2009. Contains 170342 sequences.

AT&T Labs Research