A083421 as tables, graphs or sounds

A083421 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`8`
`2`		`46`
`3`		`242`
`4`		`1234`
`5`		`6218`
`6`		`31186`
`7`		`156122`
`8`		`780994`
`9`		`3905738`
`10`		`19530226`
`11`		`97654202`
`12`		`488277154`
`13`		`2441398058`
`14`		`12207014866`
`15`		`61035123482`
`16`		`305175715714`
`17`		`1525878775178`
`18`		`7629394269106`
`19`		`38146972131962`
`20`		`190734862232674`

[1,8,46,242,1234,6218,31186,156122,780994,3905738, 19530226,97654202,488277154,2441398058, 12207014866,61035123482,305175715714, 1525878775178,7629394269106,38146972131962, 190734862232674]

Last modified December 6 11:04 EST 2009. Contains 170427 sequences.

AT&T Labs Research