A018111 as tables, graphs or sounds

A018111 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`10`
`4`		`23`
`5`		`50`
`6`		`110`
`7`		`241`
`8`		`529`
`9`		`1158`
`10`		`2536`
`11`		`5555`
`12`		`12167`
`13`		`26644`
`14`		`58350`
`15`		`127784`
`16`		`279841`
`17`		`612834`
`18`		`1342070`
`19`		`2939051`
`20`		`6436343`
`21`		`14095196`
`22`		`30867616`
`23`		`67598188`
`24`		`148035889`
`25`		`324189522`
`26`		`709955183`
`27`		`1554758332`

[1,2,4,10,23,50,110,241,529,1158,2536,5555,12167, 26644,58350,127784,279841,612834,1342070,2939051, 6436343,14095196,30867616,67598188,148035889, 324189522,709955183,1554758332]

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

AT&T Labs Research