A005409 as tables, graphs or sounds

A005409 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`11`
`5`		`28`
`6`		`69`
`7`		`168`
`8`		`407`
`9`		`984`
`10`		`2377`
`11`		`5740`
`12`		`13859`
`13`		`33460`
`14`		`80781`
`15`		`195024`
`16`		`470831`
`17`		`1136688`
`18`		`2744209`
`19`		`6625108`
`20`		`15994427`
`21`		`38613964`
`22`		`93222357`
`23`		`225058680`
`24`		`543339719`
`25`		`1311738120`
`26`		`3166815961`
`27`		`7645370044`
`28`		`18457556051`

[1,1,4,11,28,69,168,407,984,2377,5740,13859,33460, 80781,195024,470831,1136688,2744209,6625108, 15994427,38613964,93222357,225058680,543339719, 1311738120,3166815961,7645370044,18457556051]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research