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A053291 formatted as a simple table:

n a(n)
0 1
1 3
2 180
3 181440
4 2961100800
5 775476766310400
6 3251791214634074112000
7 218210695042457748180566016000
8 234298374547168764346587444978647040000 

[1,3,180,181440,2961100800,775476766310400,
 3251791214634074112000,
 218210695042457748180566016000,
 234298374547168764346587444978647040000]

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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