A138911 as tables, graphs or sounds

A138911 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`5`
`3`		`19`
`4`		`81`
`5`		`401`
`6`		`2233`
`7`		`13721`
`8`		`91969`
`9`		`666145`
`10`		`5174001`
`11`		`42827225`
`12`		`375850225`
`13`		`3481908353`
`14`		`33923685097`
`15`		`346468507201`
`16`		`3698848172289`
`17`		`41173895716289`
`18`		`476826776487649`
`19`		`5733422156706473`
`20`		`71449460236945201`
`21`		`921311262658989217`

[1,2,5,19,81,401,2233,13721,91969,666145,5174001, 42827225,375850225,3481908353,33923685097, 346468507201,3698848172289,41173895716289, 476826776487649,5733422156706473, 71449460236945201,921311262658989217]

Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

AT&T Labs Research