A006491 as tables, graphs or sounds

A006491 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`4`
`4`		`5`
`5`		`15`
`6`		`28`
`7`		`60`
`8`		`117`
`9`		`230`
`10`		`440`
`11`		`834`
`12`		`1560`
`13`		`2891`
`14`		`5310`
`15`		`9680`
`16`		`17527`
`17`		`31545`
`18`		`56468`
`19`		`100590`
`20`		`178395`
`21`		`315106`
`22`		`554530`
`23`		`972564`
`24`		`1700400`
`25`		`2964325`
`26`		`5153868`
`27`		`8938300`
`28`		`15465497`
`29`		`26700915`
`30`		`46004620`
`31`		`79112304`
`32`		`135801105`
`33`		`232715006`
`34`		`398151740`

[1,0,4,5,15,28,60,117,230,440,834,1560,2891,5310, 9680,17527,31545,56468,100590,178395,315106, 554530,972564,1700400,2964325,5153868,8938300, 15465497,26700915,46004620,79112304,135801105, 232715006,398151740]

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research