A122877 as tables, graphs or sounds

A122877 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`2`
`3`		`7`
`4`		`20`
`5`		`65`
`6`		`206`
`7`		`679`
`8`		`2248`
`9`		`7569`
`10`		`25690`
`11`		`88055`
`12`		`303964`
`13`		`1056497`
`14`		`3693158`
`15`		`12977655`
`16`		`45813008`
`17`		`162400609`
`18`		`577843890`
`19`		`2063053991`
`20`		`7388487460`
`21`		`26535797729`
`22`		`95552015614`
`23`		`344897769991`
`24`		`1247685613272`

[0,1,2,7,20,65,206,679,2248,7569,25690,88055, 303964,1056497,3693158,12977655,45813008, 162400609,577843890,2063053991,7388487460, 26535797729,95552015614,344897769991, 1247685613272]

Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research