A032031 as tables, graphs or sounds

A032031 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`18`
`3`		`162`
`4`		`1944`
`5`		`29160`
`6`		`524880`
`7`		`11022480`
`8`		`264539520`
`9`		`7142567040`
`10`		`214277011200`
`11`		`7071141369600`
`12`		`254561089305600`
`13`		`9927882482918400`
`14`		`416971064282572800`
`15`		`18763697892715776000`
`16`		`900657498850357248000`

[1,3,18,162,1944,29160,524880,11022480,264539520, 7142567040,214277011200,7071141369600, 254561089305600,9927882482918400, 416971064282572800,18763697892715776000, 900657498850357248000]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research