A049955 as tables, graphs or sounds

A049955 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`2`
`4`		`7`
`5`		`19`
`6`		`33`
`7`		`71`
`8`		`168`
`9`		`471`
`10`		`776`
`11`		`1557`
`12`		`3140`
`13`		`6415`
`14`		`13438`
`15`		`29240`
`16`		`68778`
`17`		`192896`
`18`		`317016`
`19`		`634037`
`20`		`1268100`
`21`		`2536335`
`22`		`5073278`
`23`		`10148920`
`24`		`20308138`
`25`		`40671616`
`26`		`81591470`
`27`		`164134024`
`28`		`332073226`
`29`		`679381312`
`30`		`1420045956`
`31`		`3090573668`

[1,2,2,7,19,33,71,168,471,776,1557,3140,6415, 13438,29240,68778,192896,317016,634037,1268100, 2536335,5073278,10148920,20308138,40671616, 81591470,164134024,332073226,679381312,1420045956, 3090573668]

Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

AT&T Labs Research