A100381 as tables, graphs or sounds

A100381 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`4`
`3`		`24`
`4`		`96`
`5`		`320`
`6`		`960`
`7`		`2688`
`8`		`7168`
`9`		`18432`
`10`		`46080`
`11`		`112640`
`12`		`270336`
`13`		`638976`
`14`		`1490944`
`15`		`3440640`
`16`		`7864320`
`17`		`17825792`
`18`		`40108032`
`19`		`89653248`
`20`		`199229440`
`21`		`440401920`
`22`		`968884224`
`23`		`2122317824`
`24`		`4630511616`
`25`		`10066329600`
`26`		`21810380800`
`27`		`47110422528`

[0,0,4,24,96,320,960,2688,7168,18432,46080,112640, 270336,638976,1490944,3440640,7864320,17825792, 40108032,89653248,199229440,440401920,968884224, 2122317824,4630511616,10066329600,21810380800, 47110422528]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research