A027581 as tables, graphs or sounds

A027581 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`2`
`5`		`3`
`6`		`4`
`7`		`5`
`8`		`6`
`9`		`8`
`10`		`10`
`11`		`12`
`12`		`15`
`13`		`17`
`14`		`21`
`15`		`26`
`16`		`30`
`17`		`36`
`18`		`43`
`19`		`49`
`20`		`58`
`21`		`69`
`22`		`79`
`23`		`91`
`24`		`106`
`25`		`122`
`26`		`140`
`27`		`161`
`28`		`183`
`29`		`209`
`30`		`239`
`31`		`271`
`32`		`308`
`33`		`348`
`34`		`392`
`35`		`444`
`36`		`501`
`37`		`561`
`38`		`630`
`39`		`708`
`40`		`791`
`41`		`884`
`42`		`989`
`43`		`1101`
`44`		`1225`
`45`		`1365`
`46`		`1516`
`47`		`1681`
`48`		`1863`
`49`		`2062`
`50`		`2282`
`51`		`2522`
`52`		`2782`
`53`		`3069`
`54`		`3381`
`55`		`3719`
`56`		`4092`

[1,1,1,2,2,3,4,5,6,8,10,12,15,17,21,26,30,36,43, 49,58,69,79,91,106,122,140,161,183,209,239,271, 308,348,392,444,501,561,630,708,791,884,989,1101, 1225,1365,1516,1681,1863,2062,2282,2522,2782,3069, 3381,3719,4092]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research