A004009 as tables, graphs or sounds

A004009 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`240`
`2`		`2160`
`3`		`6720`
`4`		`17520`
`5`		`30240`
`6`		`60480`
`7`		`82560`
`8`		`140400`
`9`		`181680`
`10`		`272160`
`11`		`319680`
`12`		`490560`
`13`		`527520`
`14`		`743040`
`15`		`846720`
`16`		`1123440`
`17`		`1179360`
`18`		`1635120`
`19`		`1646400`
`20`		`2207520`
`21`		`2311680`
`22`		`2877120`
`23`		`2920320`
`24`		`3931200`
`25`		`3780240`
`26`		`4747680`
`27`		`4905600`
`28`		`6026880`

[1,240,2160,6720,17520,30240,60480,82560,140400, 181680,272160,319680,490560,527520,743040,846720, 1123440,1179360,1635120,1646400,2207520,2311680, 2877120,2920320,3931200,3780240,4747680,4905600, 6026880]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research