A020648 as tables, graphs or sounds

A020648 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`6`
`2`		`9`
`3`		`15`
`4`		`18`
`5`		`24`
`6`		`27`
`7`		`30`
`8`		`36`
`9`		`39`
`10`		`45`
`11`		`48`
`12`		`54`
`13`		`54`
`14`		`60`
`15`		`63`
`16`		`69`
`17`		`72`
`18`		`78`
`19`		`81`
`20`		`81`
`21`		`87`
`22`		`90`
`23`		`96`
`24`		`99`
`25`		`105`
`26`		`108`
`27`		`111`
`28`		`117`
`29`		`120`
`30`		`126`
`31`		`129`
`32`		`135`
`33`		`135`
`34`		`141`
`35`		`144`
`36`		`150`
`37`		`153`
`38`		`159`
`39`		`162`
`40`		`162`
`41`		`168`
`42`		`171`
`43`		`177`
`44`		`180`
`45`		`186`
`46`		`189`
`47`		`192`
`48`		`198`
`49`		`201`
`50`		`207`
`51`		`210`
`52`		`216`
`53`		`216`
`54`		`222`
`55`		`225`
`56`		`231`
`57`		`234`
`58`		`240`
`59`		`243`
`60`		`243`

[1,6,9,15,18,24,27,30,36,39,45,48,54,54,60,63,69, 72,78,81,81,87,90,96,99,105,108,111,117,120,126, 129,135,135,141,144,150,153,159,162,162,168,171, 177,180,186,189,192,198,201,207,210,216,216,222, 225,231,234,240,243,243]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research