A040397 as tables, graphs or sounds

A040397 formatted as a simple table:

`n`		`a(n)`
`0`		`20`
`1`		`2`
`2`		`4`
`3`		`20`
`4`		`4`
`5`		`2`
`6`		`40`
`7`		`2`
`8`		`4`
`9`		`20`
`10`		`4`
`11`		`2`
`12`		`40`
`13`		`2`
`14`		`4`
`15`		`20`
`16`		`4`
`17`		`2`
`18`		`40`
`19`		`2`
`20`		`4`
`21`		`20`
`22`		`4`
`23`		`2`
`24`		`40`
`25`		`2`
`26`		`4`
`27`		`20`
`28`		`4`
`29`		`2`
`30`		`40`
`31`		`2`
`32`		`4`
`33`		`20`
`34`		`4`
`35`		`2`
`36`		`40`
`37`		`2`
`38`		`4`
`39`		`20`
`40`		`4`
`41`		`2`
`42`		`40`
`43`		`2`
`44`		`4`
`45`		`20`
`46`		`4`
`47`		`2`
`48`		`40`
`49`		`2`
`50`		`4`
`51`		`20`
`52`		`4`
`53`		`2`
`54`		`40`
`55`		`2`
`56`		`4`
`57`		`20`
`58`		`4`
`59`		`2`
`60`		`40`
`61`		`2`
`62`		`4`
`63`		`20`
`64`		`4`
`65`		`2`
`66`		`40`
`67`		`2`
`68`		`4`
`69`		`20`
`70`		`4`
`71`		`2`
`72`		`40`
`73`		`2`
`74`		`4`
`75`		`20`
`76`		`4`
`77`		`2`
`78`		`40`
`79`		`2`
`80`		`4`

[20,2,4,20,4,2,40,2,4,20,4,2,40,2,4,20,4,2,40,2,4, 20,4,2,40,2,4,20,4,2,40,2,4,20,4,2,40,2,4,20,4,2, 40,2,4,20,4,2,40,2,4,20,4,2,40,2,4,20,4,2,40,2,4, 20,4,2,40,2,4,20,4,2,40,2,4,20,4,2,40,2,4]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research