A121956 as tables, graphs or sounds

A121956 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`5`
`6`		`12`
`7`		`34`
`8`		`99`
`9`		`315`
`10`		`1042`
`11`		`3661`
`12`		`13354`
`13`		`51006`
`14`		`201561`
`15`		`826987`
`16`		`3498286`
`17`		`15277665`
`18`		`68578942`
`19`		`316519868`
`20`		`1497639547`
`21`		`7263576113`
`22`		`36035247374`
`23`		`182804409181`
`24`		`946808180148`
`25`		`5004540429504`
`26`		`26963932982089`
`27`		`148019711470333`

[0,1,1,2,5,12,34,99,315,1042,3661,13354,51006, 201561,826987,3498286,15277665,68578942,316519868, 1497639547,7263576113,36035247374,182804409181, 946808180148,5004540429504,26963932982089, 148019711470333]

Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research