A008720 as tables, graphs or sounds

A008720 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`2`
`3`		`0`
`4`		`3`
`5`		`1`
`6`		`4`
`7`		`2`
`8`		`5`
`9`		`3`
`10`		`7`
`11`		`4`
`12`		`9`
`13`		`5`
`14`		`11`
`15`		`7`
`16`		`13`
`17`		`9`
`18`		`15`
`19`		`11`
`20`		`18`
`21`		`13`
`22`		`21`
`23`		`15`
`24`		`24`
`25`		`18`
`26`		`27`
`27`		`21`
`28`		`30`
`29`		`24`
`30`		`34`
`31`		`27`
`32`		`38`
`33`		`30`
`34`		`42`
`35`		`34`
`36`		`46`
`37`		`38`
`38`		`50`
`39`		`42`
`40`		`55`
`41`		`46`
`42`		`60`
`43`		`50`
`44`		`65`
`45`		`55`
`46`		`70`
`47`		`60`
`48`		`75`
`49`		`65`
`50`		`81`
`51`		`70`
`52`		`87`
`53`		`75`
`54`		`93`
`55`		`81`
`56`		`99`
`57`		`87`
`58`		`105`

[1,0,2,0,3,1,4,2,5,3,7,4,9,5,11,7,13,9,15,11,18, 13,21,15,24,18,27,21,30,24,34,27,38,30,42,34,46, 38,50,42,55,46,60,50,65,55,70,60,75,65,81,70,87, 75,93,81,99,87,105]

Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

AT&T Labs Research