A030221 as tables, graphs or sounds

A030221 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`6`
`2`		`29`
`3`		`139`
`4`		`666`
`5`		`3191`
`6`		`15289`
`7`		`73254`
`8`		`350981`
`9`		`1681651`
`10`		`8057274`
`11`		`38604719`
`12`		`184966321`
`13`		`886226886`
`14`		`4246168109`
`15`		`20344613659`
`16`		`97476900186`
`17`		`467039887271`
`18`		`2237722536169`
`19`		`10721572793574`
`20`		`51370141431701`

[1,6,29,139,666,3191,15289,73254,350981,1681651, 8057274,38604719,184966321,886226886,4246168109, 20344613659,97476900186,467039887271, 2237722536169,10721572793574,51370141431701]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research