A121804 as tables, graphs or sounds

A121804 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`159`
`3`		`4846`
`4`		`43648`
`5`		`272432`
`6`		`1759444`
`7`		`10596296`
`8`		`64633588`
`9`		`387979832`
`10`		`2337067204`
`11`		`14023337096`
`12`		`84221417428`
`13`		`505334268632`
`14`		`3032732926564`
`15`		`18196438915496`
`16`		`109185158327668`
`17`		`655111280131832`
`18`		`3930726320267524`
`19`		`23584360724983496`

[0,159,4846,43648,272432,1759444,10596296, 64633588,387979832,2337067204,14023337096, 84221417428,505334268632,3032732926564, 18196438915496,109185158327668,655111280131832, 3930726320267524,23584360724983496]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research