A000449 as tables, graphs or sounds

A000449 formatted as a simple table:

`n`		`a(n)`
`3`		`1`
`4`		`0`
`5`		`10`
`6`		`40`
`7`		`315`
`8`		`2464`
`9`		`22260`
`10`		`222480`
`11`		`2447445`
`12`		`29369120`
`13`		`381798846`
`14`		`5345183480`
`15`		`80177752655`
`16`		`1282844041920`
`17`		`21808348713320`
`18`		`392550276838944`
`19`		`7458455259940905`
`20`		`149169105198816960`
`21`		`3132551209175157490`
`22`		`68916126601853463240`

[1,0,10,40,315,2464,22260,222480,2447445,29369120, 381798846,5345183480,80177752655,1282844041920, 21808348713320,392550276838944,7458455259940905, 149169105198816960,3132551209175157490, 68916126601853463240]

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

AT&T Labs Research