A055555 as tables, graphs or sounds

A055555 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`3`
`3`		`21`
`4`		`300`
`5`		`7260`
`6`		`259560`
`7`		`12703320`
`8`		`812871360`
`9`		`65841128640`
`10`		`6584096534400`
`11`		`796675481078400`
`12`		`114721266640780800`
`13`		`19387894024929830400`
`14`		`3800027228319587865600`
`15`		`855006126362753549184000`
`16`		`218881568348707987666944000`
`17`		`63256773252773762936322048000`

[1,1,3,21,300,7260,259560,12703320,812871360, 65841128640,6584096534400,796675481078400, 114721266640780800,19387894024929830400, 3800027228319587865600,855006126362753549184000, 218881568348707987666944000, 63256773252773762936322048000]

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research