A000678 as tables, graphs or sounds

A000678 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`4`
`5`		`9`
`6`		`18`
`7`		`42`
`8`		`96`
`9`		`229`
`10`		`549`
`11`		`1347`
`12`		`3326`
`13`		`8330`
`14`		`21000`
`15`		`53407`
`16`		`136639`
`17`		`351757`
`18`		`909962`
`19`		`2365146`
`20`		`6172068`
`21`		`16166991`
`22`		`42488077`
`23`		`112004630`
`24`		`296080425`
`25`		`784688263`
`26`		`2084521232`
`27`		`5549613097`
`28`		`14804572332`
`29`		`39568107511`
`30`		`105938822149`

[0,1,1,2,4,9,18,42,96,229,549,1347,3326,8330, 21000,53407,136639,351757,909962,2365146,6172068, 16166991,42488077,112004630,296080425,784688263, 2084521232,5549613097,14804572332,39568107511, 105938822149]

Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research