A006861 as tables, graphs or sounds

A006861 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`3`
`4`		`6`
`5`		`11`
`6`		`21`
`7`		`40`
`8`		`77`
`9`		`149`
`10`		`289`
`11`		`563`
`12`		`1099`
`13`		`2152`
`14`		`4222`
`15`		`8299`
`16`		`16339`
`17`		`32217`
`18`		`63612`
`19`		`125753`
`20`		`248870`
`21`		`493015`
`22`		`977576`
`23`		`1940042`
`24`		`3853117`
`25`		`7658211`
`26`		`15231219`
`27`		`30312012`
`28`		`60360046`
`29`		`120260317`

[1,2,3,6,11,21,40,77,149,289,563,1099,2152,4222, 8299,16339,32217,63612,125753,248870,493015, 977576,1940042,3853117,7658211,15231219,30312012, 60360046,120260317]

Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

AT&T Labs Research