A124497 as tables, graphs or sounds

A124497 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`9`
`5`		`20`
`6`		`48`
`7`		`116`
`8`		`288`
`9`		`724`
`10`		`1849`
`11`		`4768`
`12`		`12423`
`13`		`32628`
`14`		`86342`
`15`		`229952`
`16`		`616042`
`17`		`1659012`
`18`		`4489101`
`19`		`12199521`
`20`		`33284546`
`21`		`91140797`
`22`		`250396629`
`23`		`690043032`
`24`		`1907022197`
`25`		`5284167884`
`26`		`14677681554`
`27`		`40862469713`
`28`		`114001697975`

[1,1,2,4,9,20,48,116,288,724,1849,4768,12423, 32628,86342,229952,616042,1659012,4489101, 12199521,33284546,91140797,250396629,690043032, 1907022197,5284167884,14677681554,40862469713, 114001697975]

Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research