A129549 as tables, graphs or sounds

A129549 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`20`
`4`		`78`
`5`		`352`
`6`		`1365`
`7`		`5232`
`8`		`18271`
`9`		`60598`
`10`		`187296`
`11`		`548020`
`12`		`1515265`
`13`		`3991204`
`14`		`10035401`
`15`		`24210308`
`16`		`56188768`
`17`		`125904351`
`18`		`273044682`
`19`		`574635828`
`20`		`1176027747`
`21`		`2345376048`
`22`		`4565886531`
`23`		`8691118644`
`24`		`16198834634`
`25`		`29602895824`
`26`		`53105875363`

[1,3,20,78,352,1365,5232,18271,60598,187296, 548020,1515265,3991204,10035401,24210308,56188768, 125904351,273044682,574635828,1176027747, 2345376048,4565886531,8691118644,16198834634, 29602895824,53105875363]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research