A013642 as tables, graphs or sounds

A013642 formatted as a simple table:

`n`		`a(n)`
`1`		`3`
`2`		`6`
`3`		`8`
`4`		`11`
`5`		`12`
`6`		`15`
`7`		`18`
`8`		`20`
`9`		`24`
`10`		`27`
`11`		`30`
`12`		`35`
`13`		`38`
`14`		`39`
`15`		`40`
`16`		`42`
`17`		`48`
`18`		`51`
`19`		`56`
`20`		`63`
`21`		`66`
`22`		`68`
`23`		`72`
`24`		`80`
`25`		`83`
`26`		`84`
`27`		`87`
`28`		`90`
`29`		`99`
`30`		`102`
`31`		`104`
`32`		`105`
`33`		`110`
`34`		`120`
`35`		`123`
`36`		`132`
`37`		`143`
`38`		`146`
`39`		`147`
`40`		`148`
`41`		`150`
`42`		`152`
`43`		`156`
`44`		`168`
`45`		`171`
`46`		`182`
`47`		`195`
`48`		`198`
`49`		`200`
`50`		`203`
`51`		`210`
`52`		`224`
`53`		`227`
`54`		`228`
`55`		`230`
`56`		`231`
`57`		`235`
`58`		`240`
`59`		`255`
`60`		`258`
`61`		`260`
`62`		`264`

[3,6,8,11,12,15,18,20,24,27,30,35,38,39,40,42,48, 51,56,63,66,68,72,80,83,84,87,90,99,102,104,105, 110,120,123,132,143,146,147,148,150,152,156,168, 171,182,195,198,200,203,210,224,227,228,230,231, 235,240,255,258,260,264]

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

AT&T Labs Research