A131553 as tables, graphs or sounds

A131553 formatted as a simple table:

`n`		`a(n)`
`1`		`2`
`2`		`2`
`3`		`6`
`4`		`8`
`5`		`120`
`6`		`12`
`7`		`5040`
`8`		`384`
`9`		`12960`
`10`		`640`
`11`		`39916800`
`12`		`1152`
`13`		`6227020800`
`14`		`80640`
`15`		`5443200`
`16`		`10321920`
`17`		`355687428096000`
`18`		`290304`
`19`		`121645100408832000`
`20`		`38707200`
`21`		`384758035200`
`22`		`6812467200`
`23`		`25852016738884976640000`
`24`		`139345920`

[2,2,6,8,120,12,5040,384,12960,640,39916800,1152, 6227020800,80640,5443200,10321920,355687428096000, 290304,121645100408832000,38707200,384758035200, 6812467200,25852016738884976640000,139345920]

Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research