A001621 as tables, graphs or sounds

A001621 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`12`
`3`		`42`
`4`		`110`
`5`		`240`
`6`		`462`
`7`		`812`
`8`		`1332`
`9`		`2070`
`10`		`3080`
`11`		`4422`
`12`		`6162`
`13`		`8372`
`14`		`11130`
`15`		`14520`
`16`		`18632`
`17`		`23562`
`18`		`29412`
`19`		`36290`
`20`		`44310`
`21`		`53592`
`22`		`64262`
`23`		`76452`
`24`		`90300`
`25`		`105950`
`26`		`123552`
`27`		`143262`
`28`		`165242`
`29`		`189660`
`30`		`216690`

[0,2,12,42,110,240,462,812,1332,2070,3080,4422, 6162,8372,11130,14520,18632,23562,29412,36290, 44310,53592,64262,76452,90300,105950,123552, 143262,165242,189660,216690]

Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research