A061575 as tables, graphs or sounds

A061575 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`0`
`3`		`2`
`4`		`2`
`5`		`7`
`6`		`14`
`7`		`41`
`8`		`107`
`9`		`307`
`10`		`871`
`11`		`2546`
`12`		`7497`
`13`		`22380`
`14`		`67366`
`15`		`204517`
`16`		`625132`
`17`		`1922700`
`18`		`5945469`
`19`		`18473841`
`20`		`57649699`
`21`		`180602285`
`22`		`567772883`
`23`		`1790663427`
`24`		`5663969707`
`25`		`17963483548`
`26`		`57112388657`
`27`		`181994536484`
`28`		`581168157605`

[0,1,0,2,2,7,14,41,107,307,871,2546,7497,22380, 67366,204517,625132,1922700,5945469,18473841, 57649699,180602285,567772883,1790663427, 5663969707,17963483548,57112388657,181994536484, 581168157605]

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

AT&T Labs Research