A030800 as tables, graphs or sounds

A030800 formatted as a simple table:

`n`		`a(n)`
`1`		`2`
`2`		`4`
`3`		`13`
`4`		`52`
`5`		`264`
`6`		`1589`
`7`		`11123`
`8`		`88989`
`9`		`800902`
`10`		`8009022`
`11`		`88099244`
`12`		`1057190930`
`13`		`13743482102`
`14`		`192408749440`
`15`		`2886131241604`
`16`		`46178099865665`
`17`		`785027697716317`
`18`		`14130498558893720`
`19`		`268479472618980693`
`20`		`5369589452379613862`

[2,4,13,52,264,1589,11123,88989,800902,8009022, 88099244,1057190930,13743482102,192408749440, 2886131241604,46178099865665,785027697716317, 14130498558893720,268479472618980693, 5369589452379613862]

Last modified December 15 00:42 EST 2009. Contains 170824 sequences.

AT&T Labs Research