A074143 as tables, graphs or sounds

A074143 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`9`
`4`		`48`
`5`		`300`
`6`		`2160`
`7`		`17640`
`8`		`161280`
`9`		`1632960`
`10`		`18144000`
`11`		`219542400`
`12`		`2874009600`
`13`		`40475635200`
`14`		`610248038400`
`15`		`9807557760000`
`16`		`167382319104000`
`17`		`3023343138816000`
`18`		`57621363351552000`
`19`		`1155628453883904000`

[1,2,9,48,300,2160,17640,161280,1632960,18144000, 219542400,2874009600,40475635200,610248038400, 9807557760000,167382319104000,3023343138816000, 57621363351552000,1155628453883904000]

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

AT&T Labs Research