A033488 as tables, graphs or sounds

A033488 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`4`
`2`		`20`
`3`		`60`
`4`		`140`
`5`		`280`
`6`		`504`
`7`		`840`
`8`		`1320`
`9`		`1980`
`10`		`2860`
`11`		`4004`
`12`		`5460`
`13`		`7280`
`14`		`9520`
`15`		`12240`
`16`		`15504`
`17`		`19380`
`18`		`23940`
`19`		`29260`
`20`		`35420`
`21`		`42504`
`22`		`50600`
`23`		`59800`
`24`		`70200`
`25`		`81900`
`26`		`95004`
`27`		`109620`
`28`		`125860`
`29`		`143840`
`30`		`163680`
`31`		`185504`
`32`		`209440`

[0,4,20,60,140,280,504,840,1320,1980,2860,4004, 5460,7280,9520,12240,15504,19380,23940,29260, 35420,42504,50600,59800,70200,81900,95004,109620, 125860,143840,163680,185504,209440]

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research