A002893 as tables, graphs or sounds

A002893 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`15`
`3`		`93`
`4`		`639`
`5`		`4653`
`6`		`35169`
`7`		`272835`
`8`		`2157759`
`9`		`17319837`
`10`		`140668065`
`11`		`1153462995`
`12`		`9533639025`
`13`		`79326566595`
`14`		`663835030335`
`15`		`5582724468093`
`16`		`47152425626559`
`17`		`399769750195965`
`18`		`3400775573443089`
`19`		`29016970072920387`
`20`		`248256043372999089`

[1,3,15,93,639,4653,35169,272835,2157759,17319837, 140668065,1153462995,9533639025,79326566595, 663835030335,5582724468093,47152425626559, 399769750195965,3400775573443089, 29016970072920387,248256043372999089]

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

AT&T Labs Research