A006027 as tables, graphs or sounds

A006027 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`6`
`5`		`20`
`6`		`71`
`7`		`263`
`8`		`1005`
`9`		`3933`
`10`		`15684`
`11`		`63505`
`12`		`260390`
`13`		`1079019`
`14`		`4511700`
`15`		`19011521`
`16`		`80653480`
`17`		`344193353`
`18`		`1476589475`
`19`		`6364258163`
`20`		`27545933212`
`21`		`119676949397`
`22`		`521739175908`
`23`		`2281673067934`
`24`		`10006784399183`

[1,1,2,6,20,71,263,1005,3933,15684,63505,260390, 1079019,4511700,19011521,80653480,344193353, 1476589475,6364258163,27545933212,119676949397, 521739175908,2281673067934,10006784399183]

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

AT&T Labs Research