A007575 as tables, graphs or sounds

A007575 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`7`
`4`		`19`
`5`		`53`
`6`		`149`
`7`		`419`
`8`		`1191`
`9`		`3403`
`10`		`9755`
`11`		`28077`
`12`		`81097`
`13`		`234861`
`14`		`681697`
`15`		`1982723`
`16`		`5777375`
`17`		`16861521`
`18`		`49281525`
`19`		`144222987`
`20`		`422566835`
`21`		`1239423303`
`22`		`3638872529`
`23`		`10693065215`
`24`		`31448140529`
`25`		`92558787745`
`26`		`272612601065`
`27`		`803448576111`

[1,3,7,19,53,149,419,1191,3403,9755,28077,81097, 234861,681697,1982723,5777375,16861521,49281525, 144222987,422566835,1239423303,3638872529, 10693065215,31448140529,92558787745,272612601065, 803448576111]

Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

AT&T Labs Research