A082140 as tables, graphs or sounds

A082140 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`7`
`2`		`56`
`3`		`336`
`4`		`1680`
`5`		`7392`
`6`		`29568`
`7`		`109824`
`8`		`384384`
`9`		`1281280`
`10`		`4100096`
`11`		`12673024`
`12`		`38019072`
`13`		`111132672`
`14`		`317521920`
`15`		`889061376`
`16`		`2444918784`
`17`		`6615662592`
`18`		`17641766912`
`19`		`46425702400`
`20`		`120706826240`
`21`		`310388981760`
`22`		`790081044480`

[1,7,56,336,1680,7392,29568,109824,384384,1281280, 4100096,12673024,38019072,111132672,317521920, 889061376,2444918784,6615662592,17641766912, 46425702400,120706826240,310388981760, 790081044480]

Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

AT&T Labs Research