A003520 as tables, graphs or sounds

A003520 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`2`
`6`		`3`
`7`		`4`
`8`		`5`
`9`		`6`
`10`		`8`
`11`		`11`
`12`		`15`
`13`		`20`
`14`		`26`
`15`		`34`
`16`		`45`
`17`		`60`
`18`		`80`
`19`		`106`
`20`		`140`
`21`		`185`
`22`		`245`
`23`		`325`
`24`		`431`
`25`		`571`
`26`		`756`
`27`		`1001`
`28`		`1326`
`29`		`1757`
`30`		`2328`
`31`		`3084`
`32`		`4085`
`33`		`5411`
`34`		`7168`
`35`		`9496`
`36`		`12580`
`37`		`16665`
`38`		`22076`
`39`		`29244`
`40`		`38740`
`41`		`51320`
`42`		`67985`
`43`		`90061`
`44`		`119305`
`45`		`158045`
`46`		`209365`
`47`		`277350`
`48`		`367411`
`49`		`486716`
`50`		`644761`

[1,1,1,1,1,2,3,4,5,6,8,11,15,20,26,34,45,60,80, 106,140,185,245,325,431,571,756,1001,1326,1757, 2328,3084,4085,5411,7168,9496,12580,16665,22076, 29244,38740,51320,67985,90061,119305,158045, 209365,277350,367411,486716,644761]

Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

AT&T Labs Research