A128593 as tables, graphs or sounds

A128593 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`12`
`3`		`45`
`4`		`170`
`5`		`644`
`6`		`2451`
`7`		`9365`
`8`		`35908`
`9`		`138104`
`10`		`532589`
`11`		`2058782`
`12`		`7975216`
`13`		`30951921`
`14`		`120326060`
`15`		`468473348`
`16`		`1826415556`
`17`		`7129330988`
`18`		`27860219331`
`19`		`108984557708`
`20`		`426730087879`
`21`		`1672310507262`
`22`		`6558840830680`
`23`		`25742937514814`

[1,3,12,45,170,644,2451,9365,35908,138104,532589, 2058782,7975216,30951921,120326060,468473348, 1826415556,7129330988,27860219331,108984557708, 426730087879,1672310507262,6558840830680, 25742937514814]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research