A142473 as tables, graphs or sounds

A142473 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`-1`
`3`		`2`
`4`		`4`
`5`		`-6`
`6`		`6`
`7`		`-36`
`8`		`44`
`9`		`-36`
`10`		`24`
`11`		`576`
`12`		`-600`
`13`		`420`
`14`		`-240`
`15`		`120`
`16`		`-14400`
`17`		`13152`
`18`		`-8100`
`19`		`4080`
`20`		`-1800`
`21`		`720`
`22`		`518400`
`23`		`-423360`
`24`		`233856`
`25`		`-105840`
`26`		`42000`
`27`		`-15120`
`28`		`5040`
`29`		`-25401600`
`30`		`18817920`
`31`		`-9455040`
`32`		`3898944`
`33`		`-1411200`
`34`		`463680`
`35`		`-141120`
`36`		`40320`
`37`		`1625702400`
`38`		`-1104606720`
`39`		`510295680`
`40`		`-193777920`
`41`		`64653120`

[1,-1,2,4,-6,6,-36,44,-36,24,576,-600,420,-240, 120,-14400,13152,-8100,4080,-1800,720,518400, -423360,233856,-105840,42000,-15120,5040, -25401600,18817920,-9455040,3898944,-1411200, 463680,-141120,40320,1625702400,-1104606720, 510295680,-193777920,64653120]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research