A006043 as tables, graphs or sounds

A006043 formatted as a simple table:

`n`		`a(n)`
`0`		`2`
`1`		`18`
`2`		`108`
`3`		`540`
`4`		`2430`
`5`		`10206`
`6`		`40824`
`7`		`157464`
`8`		`590490`
`9`		`2165130`
`10`		`7794468`
`11`		`27634932`
`12`		`96722262`
`13`		`334807830`
`14`		`1147912560`
`15`		`3902902704`
`16`		`13172296626`
`17`		`44165935746`
`18`		`147219785820`
`19`		`488149816140`
`20`		`1610894393262`
`21`		`5292938720718`

[2,18,108,540,2430,10206,40824,157464,590490, 2165130,7794468,27634932,96722262,334807830, 1147912560,3902902704,13172296626,44165935746, 147219785820,488149816140,1610894393262, 5292938720718]

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

AT&T Labs Research