A001354 as tables, graphs or sounds

A001354 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`7`
`2`		`21`
`3`		`56`
`4`		`147`
`5`		`385`
`6`		`1008`
`7`		`2639`
`8`		`6909`
`9`		`18088`
`10`		`47355`
`11`		`123977`
`12`		`324576`
`13`		`849751`
`14`		`2224677`
`15`		`5824280`
`16`		`15248163`
`17`		`39920209`
`18`		`104512464`
`19`		`273617183`
`20`		`716339085`
`21`		`1875400072`
`22`		`4909861131`
`23`		`12854183321`

[1,7,21,56,147,385,1008,2639,6909,18088,47355, 123977,324576,849751,2224677,5824280,15248163, 39920209,104512464,273617183,716339085,1875400072, 4909861131,12854183321]

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research