A001630 as tables, graphs or sounds

A001630 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`1`
`3`		`2`
`4`		`3`
`5`		`6`
`6`		`12`
`7`		`23`
`8`		`44`
`9`		`85`
`10`		`164`
`11`		`316`
`12`		`609`
`13`		`1174`
`14`		`2263`
`15`		`4362`
`16`		`8408`
`17`		`16207`
`18`		`31240`
`19`		`60217`
`20`		`116072`
`21`		`223736`
`22`		`431265`
`23`		`831290`
`24`		`1602363`
`25`		`3088654`
`26`		`5953572`
`27`		`11475879`
`28`		`22120468`
`29`		`42638573`
`30`		`82188492`
`31`		`158423412`
`32`		`305370945`
`33`		`588621422`
`34`		`1134604271`

[0,0,1,2,3,6,12,23,44,85,164,316,609,1174,2263, 4362,8408,16207,31240,60217,116072,223736,431265, 831290,1602363,3088654,5953572,11475879,22120468, 42638573,82188492,158423412,305370945,588621422, 1134604271]

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research