A002851 as tables, graphs or sounds

A002851 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`2`
`4`		`5`
`5`		`19`
`6`		`85`
`7`		`509`
`8`		`4060`
`9`		`41301`
`10`		`510489`
`11`		`7319447`
`12`		`117940535`
`13`		`2094480864`
`14`		`40497138011`
`15`		`845480228069`
`16`		`18941522184590`
`17`		`453090162062723`
`18`		`11523392072541432`
`19`		`310467244165539782`
`20`		`8832736318937756165`

[1,2,5,19,85,509,4060,41301,510489,7319447, 117940535,2094480864,40497138011,845480228069, 18941522184590,453090162062723,11523392072541432, 310467244165539782,8832736318937756165]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research