A006978 as tables, graphs or sounds

A006978 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`7`
`4`		`13`
`5`		`31`
`6`		`49`
`7`		`115`
`8`		`215`
`9`		`509`
`10`		`775`
`11`		`1805`
`12`		`3359`
`13`		`7985`
`14`		`12659`
`15`		`29655`
`16`		`54909`
`17`		`130759`
`18`		`197581`
`19`		`460383`
`20`		`855793`
`21`		`2038675`
`22`		`3227319`
`23`		`7562237`
`24`		`14149127`
`25`		`33304077`
`26`		`50625055`
`27`		`118279729`
`28`		`220060275`
`29`		`523730647`
`30`		`830325757`
`31`		`1942439431`
`32`		`3595423245`

[1,3,7,13,31,49,115,215,509,775,1805,3359,7985, 12659,29655,54909,130759,197581,460383,855793, 2038675,3227319,7562237,14149127,33304077, 50625055,118279729,220060275,523730647,830325757, 1942439431,3595423245]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research