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A160275 formatted as a simple table:

n a(n)
1 1
2 5
3 15
4 15
5 30
6 210
7 1050
8 6300
9 1045800
10 13756453200
11 67826316310678800
12 8622353329220210792550912000
13 92206830102396929163916671718833533307592704000 

[1,5,15,15,30,210,1050,6300,1045800,13756453200,
 67826316310678800,8622353329220210792550912000,
 92206830102396929163916671718833533307592704000]

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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