A057080 as tables, graphs or sounds

A057080 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`9`
`2`		`71`
`3`		`559`
`4`		`4401`
`5`		`34649`
`6`		`272791`
`7`		`2147679`
`8`		`16908641`
`9`		`133121449`
`10`		`1048062951`
`11`		`8251382159`
`12`		`64962994321`
`13`		`511452572409`
`14`		`4026657584951`
`15`		`31701808107199`
`16`		`249587807272641`
`17`		`1965000650073929`
`18`		`15470417393318791`
`19`		`121798338496476399`

[1,9,71,559,4401,34649,272791,2147679,16908641, 133121449,1048062951,8251382159,64962994321, 511452572409,4026657584951,31701808107199, 249587807272641,1965000650073929, 15470417393318791,121798338496476399]

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research