A046209 as tables, graphs or sounds

A046209 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`6`
`5`		`16`
`6`		`38`
`7`		`104`
`8`		`270`
`9`		`726`
`10`		`1960`
`11`		`5368`
`12`		`14736`
`13`		`40880`
`14`		`113828`
`15`		`318848`
`16`		`896670`
`17`		`2532160`
`18`		`7174050`
`19`		`20390552`
`20`		`58112088`
`21`		`166037248`
`22`		`475467916`
`23`		`1364393896`
`24`		`3922624800`
`25`		`11297181456`
`26`		`32588003000`
`27`		`94143178098`
`28`		`272342710380`

[1,1,2,6,16,38,104,270,726,1960,5368,14736,40880, 113828,318848,896670,2532160,7174050,20390552, 58112088,166037248,475467916,1364393896, 3922624800,11297181456,32588003000,94143178098, 272342710380]

Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

AT&T Labs Research