A007290 as tables, graphs or sounds

A007290 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`2`
`4`		`8`
`5`		`20`
`6`		`40`
`7`		`70`
`8`		`112`
`9`		`168`
`10`		`240`
`11`		`330`
`12`		`440`
`13`		`572`
`14`		`728`
`15`		`910`
`16`		`1120`
`17`		`1360`
`18`		`1632`
`19`		`1938`
`20`		`2280`
`21`		`2660`
`22`		`3080`
`23`		`3542`
`24`		`4048`
`25`		`4600`
`26`		`5200`
`27`		`5850`
`28`		`6552`
`29`		`7308`
`30`		`8120`
`31`		`8990`
`32`		`9920`
`33`		`10912`
`34`		`11968`
`35`		`13090`
`36`		`14280`
`37`		`15540`
`38`		`16872`
`39`		`18278`
`40`		`19760`
`41`		`21320`
`42`		`22960`

[0,0,0,2,8,20,40,70,112,168,240,330,440,572,728, 910,1120,1360,1632,1938,2280,2660,3080,3542,4048, 4600,5200,5850,6552,7308,8120,8990,9920,10912, 11968,13090,14280,15540,16872,18278,19760,21320, 22960]

Last modified December 17 19:39 EST 2009. Contains 170821 sequences.

AT&T Labs Research