A145550 as tables, graphs or sounds

A145550 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`4`
`5`		`9`
`6`		`20`
`7`		`48`
`8`		`115`
`9`		`286`
`10`		`719`
`11`		`1842`
`12`		`4766`
`13`		`12486`
`14`		`32972`
`15`		`87807`
`16`		`235365`
`17`		`634792`
`18`		`1720976`
`19`		`4688090`
`20`		`12824381`
`21`		`35216108`
`22`		`97037603`
`23`		`268229329`
`24`		`743562936`
`25`		`2066686470`
`26`		`5758171390`
`27`		`16079351152`

[1,1,2,4,9,20,48,115,286,719,1842,4766,12486, 32972,87807,235365,634792,1720976,4688090, 12824381,35216108,97037603,268229329,743562936, 2066686470,5758171390,16079351152]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research