A002790 as tables, graphs or sounds

A002790 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`4`
`4`		`30`
`5`		`12`
`6`		`84`
`7`		`24`
`8`		`90`
`9`		`20`
`10`		`132`
`11`		`24`
`12`		`5460`
`13`		`840`
`14`		`360`
`15`		`16`
`16`		`1530`
`17`		`180`
`18`		`7980`
`19`		`840`
`20`		`13860`
`21`		`440`
`22`		`1656`
`23`		`720`
`24`		`81900`
`25`		`6552`
`26`		`216`
`27`		`112`
`28`		`3480`
`29`		`240`
`30`		`114576`
`31`		`7392`
`32`		`117810`
`33`		`2380`
`34`		`1260`
`35`		`72`
`36`		`3838380`
`37`		`207480`
`38`		`32760`

[1,2,6,4,30,12,84,24,90,20,132,24,5460,840,360,16, 1530,180,7980,840,13860,440,1656,720,81900,6552, 216,112,3480,240,114576,7392,117810,2380,1260,72, 3838380,207480,32760]

Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

AT&T Labs Research