A001858 as tables, graphs or sounds

A001858 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`7`
`4`		`38`
`5`		`291`
`6`		`2932`
`7`		`36961`
`8`		`561948`
`9`		`10026505`
`10`		`205608536`
`11`		`4767440679`
`12`		`123373203208`
`13`		`3525630110107`
`14`		`110284283006640`
`15`		`3748357699560961`
`16`		`137557910094840848`
`17`		`5421179050350334929`
`18`		`228359487335194570528`

[1,1,2,7,38,291,2932,36961,561948,10026505, 205608536,4767440679,123373203208,3525630110107, 110284283006640,3748357699560961, 137557910094840848,5421179050350334929, 228359487335194570528]

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

AT&T Labs Research