A138292 as tables, graphs or sounds

A138292 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`7`
`4`		`25`
`5`		`121`
`6`		`841`
`7`		`9871`
`8`		`80977`
`9`		`869905`
`10`		`10776241`
`11`		`131366071`
`12`		`1821918121`
`13`		`27671299657`
`14`		`460068491065`
`15`		`8716820294911`
`16`		`162728020119841`
`17`		`3217989767498401`
`18`		`69343322972016097`
`19`		`1533322325194196455`

[1,1,1,7,25,121,841,9871,80977,869905,10776241, 131366071,1821918121,27671299657,460068491065, 8716820294911,162728020119841,3217989767498401, 69343322972016097,1533322325194196455]

Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

AT&T Labs Research