A084261 as tables, graphs or sounds

A084261 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`9`
`5`		`21`
`6`		`52`
`7`		`134`
`8`		`361`
`9`		`1009`
`10`		`2926`
`11`		`8768`
`12`		`27121`
`13`		`86373`
`14`		`282864`
`15`		`950866`
`16`		`3277169`
`17`		`11564353`
`18`		`41739130`
`19`		`153919324`
`20`		`579411641`
`21`		`2224535125`
`22`		`8703993420`
`23`		`34681783422`
`24`		`140637608089`
`25`		`580019801201`
`26`		`2431509498406`
`27`		`10355296410712`

[1,1,2,4,9,21,52,134,361,1009,2926,8768,27121, 86373,282864,950866,3277169,11564353,41739130, 153919324,579411641,2224535125,8703993420, 34681783422,140637608089,580019801201, 2431509498406,10355296410712]

Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

AT&T Labs Research