A047104 as tables, graphs or sounds

A047104 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`2`
`4`		`5`
`5`		`21`
`6`		`89`
`7`		`340`
`8`		`1312`
`9`		`5106`
`10`		`19782`
`11`		`76676`
`12`		`297776`
`13`		`1157609`
`14`		`4505193`
`15`		`17554888`
`16`		`68480902`
`17`		`267420957`
`18`		`1045329995`
`19`		`4089922224`
`20`		`16015961548`
`21`		`62768643959`
`22`		`246184737835`
`23`		`966243694608`
`24`		`3794894344275`
`25`		`14913585439328`

[1,2,5,21,89,340,1312,5106,19782,76676,297776, 1157609,4505193,17554888,68480902,267420957, 1045329995,4089922224,16015961548,62768643959, 246184737835,966243694608,3794894344275, 14913585439328]

Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research