A137280 as tables, graphs or sounds

A137280 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`10`
`3`		`37`
`4`		`181`
`5`		`802`
`6`		`3673`
`7`		`16633`
`8`		`75610`
`9`		`343261`
`10`		`1559053`
`11`		`7079986`
`12`		`32153329`
`13`		`146019889`
`14`		`663132970`
`15`		`3011538133`
`16`		`13676545189`
`17`		`62110402498`
`18`		`282067023817`
`19`		`1280973888937`
`20`		`5817390833530`
`21`		`26418989723149`
`22`		`119978705004157`

[1,10,37,181,802,3673,16633,75610,343261,1559053, 7079986,32153329,146019889,663132970,3011538133, 13676545189,62110402498,282067023817, 1280973888937,5817390833530,26418989723149, 119978705004157]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research