A001683 as tables, graphs or sounds

A001683 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`1`
`6`		`4`
`7`		`6`
`8`		`19`
`9`		`49`
`10`		`150`
`11`		`442`
`12`		`1424`
`13`		`4522`
`14`		`14924`
`15`		`49536`
`16`		`167367`
`17`		`570285`
`18`		`1965058`
`19`		`6823410`
`20`		`23884366`
`21`		`84155478`
`22`		`298377508`
`23`		`1063750740`
`24`		`3811803164`
`25`		`13722384546`
`26`		`49611801980`
`27`		`180072089896`
`28`		`655977266884`
`29`		`2397708652276`

[1,1,1,1,4,6,19,49,150,442,1424,4522,14924,49536, 167367,570285,1965058,6823410,23884366,84155478, 298377508,1063750740,3811803164,13722384546, 49611801980,180072089896,655977266884, 2397708652276]

Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

AT&T Labs Research