A049668 as tables, graphs or sounds

A049668 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`47`
`3`		`2208`
`4`		`103729`
`5`		`4873055`
`6`		`228929856`
`7`		`10754830177`
`8`		`505248088463`
`9`		`23735905327584`
`10`		`1115082302307985`
`11`		`52385132303147711`
`12`		`2460986135945634432`
`13`		`115613963257141670593`
`14`		`5431395286949712883439`
`15`		`255159964523379363851040`

[0,1,47,2208,103729,4873055,228929856,10754830177, 505248088463,23735905327584,1115082302307985, 52385132303147711,2460986135945634432, 115613963257141670593,5431395286949712883439, 255159964523379363851040]

Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

AT&T Labs Research