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A137274 formatted as a simple table:

n a(n)
0 0
1 2
2 -24
3 900
4 -80640
5 14288400
6 -4400827200
7 2156641086600
8 -1577763611424000
9 1642267210487904000
10 -2342289079736686080000 

[0,2,-24,900,-80640,14288400,-4400827200,
 2156641086600,-1577763611424000,
 1642267210487904000,-2342289079736686080000]

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

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