A073373 as tables, graphs or sounds

A073373 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`18`
`3`		`60`
`4`		`195`
`5`		`576`
`6`		`1644`
`7`		`4488`
`8`		`11925`
`9`		`30860`
`10`		`78278`
`11`		`195012`
`12`		`478599`
`13`		`1159080`
`14`		`2774880`
`15`		`6575280`
`16`		`15439065`
`17`		`35955540`
`18`		`83118970`
`19`		`190862860`
`20`		`435601611`
`21`		`988620624`
`22`		`2232236628`
`23`		`5016441240`
`24`		`11224087965`

[1,4,18,60,195,576,1644,4488,11925,30860,78278, 195012,478599,1159080,2774880,6575280,15439065, 35955540,83118970,190862860,435601611,988620624, 2232236628,5016441240,11224087965]

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

AT&T Labs Research