A003228 as tables, graphs or sounds

A003228 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`2`
`4`		`5`
`5`		`9`
`6`		`21`
`7`		`43`
`8`		`101`
`9`		`226`
`10`		`556`
`11`		`1333`
`12`		`3365`
`13`		`8500`
`14`		`22007`
`15`		`57258`
`16`		`151264`
`17`		`401761`
`18`		`1077063`
`19`		`2902599`
`20`		`7871250`
`21`		`21440642`
`22`		`58672589`
`23`		`161155637`
`24`		`444240627`
`25`		`1228400744`
`26`		`3406668865`
`27`		`9472308269`
`28`		`26402207803`
`29`		`73755064178`

[1,2,2,5,9,21,43,101,226,556,1333,3365,8500,22007, 57258,151264,401761,1077063,2902599,7871250, 21440642,58672589,161155637,444240627,1228400744, 3406668865,9472308269,26402207803,73755064178]

Last modified December 10 12:09 EST 2009. Contains 170569 sequences.

AT&T Labs Research