A128743 as tables, graphs or sounds

A128743 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`2`
`3`		`13`
`4`		`69`
`5`		`346`
`6`		`1700`
`7`		`8286`
`8`		`40264`
`9`		`195488`
`10`		`949302`
`11`		`4613025`
`12`		`22436997`
`13`		`109240038`
`14`		`532410060`
`15`		`2597468685`
`16`		`12684628125`
`17`		`62002335160`
`18`		`303332650190`
`19`		`1485213237135`
`20`		`7277719953415`
`21`		`35687662907750`
`22`		`175120787451540`

[0,0,2,13,69,346,1700,8286,40264,195488,949302, 4613025,22436997,109240038,532410060,2597468685, 12684628125,62002335160,303332650190, 1485213237135,7277719953415,35687662907750, 175120787451540]

Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

AT&T Labs Research