A003283 as tables, graphs or sounds

A003283 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`20`
`3`		`70`
`4`		`112`
`5`		`352`
`6`		`1232`
`7`		`22880`
`8`		`183040`
`9`		`1244672`
`10`		`30098432`
`11`		`72352`
`12`		`2472371200`
`13`		`115763200`
`14`		`441223168`
`15`		`6838959104`
`16`		`61568122880`
`17`		`745298329600`
`18`		`28321336524800`
`19`		`1103041527808`
`20`		`573581594460160`
`21`		`4275790067793920`
`22`		`49961677422592`

[1,2,20,70,112,352,1232,22880,183040,1244672, 30098432,72352,2472371200,115763200,441223168, 6838959104,61568122880,745298329600, 28321336524800,1103041527808,573581594460160, 4275790067793920,49961677422592]

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

AT&T Labs Research