A000144 as tables, graphs or sounds

A000144 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`20`
`2`		`180`
`3`		`960`
`4`		`3380`
`5`		`8424`
`6`		`16320`
`7`		`28800`
`8`		`52020`
`9`		`88660`
`10`		`129064`
`11`		`175680`
`12`		`262080`
`13`		`386920`
`14`		`489600`
`15`		`600960`
`16`		`840500`
`17`		`1137960`
`18`		`1330420`
`19`		`1563840`
`20`		`2050344`
`21`		`2611200`
`22`		`2986560`
`23`		`3358080`
`24`		`4194240`
`25`		`5318268`
`26`		`5878440`
`27`		`6299520`
`28`		`7862400`
`29`		`9619560`

[1,20,180,960,3380,8424,16320,28800,52020,88660, 129064,175680,262080,386920,489600,600960,840500, 1137960,1330420,1563840,2050344,2611200,2986560, 3358080,4194240,5318268,5878440,6299520,7862400, 9619560]

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research