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A110376 formatted as a simple table:

n a(n)
1 1
2 2
3 9
4 32
5 250
6 864
7 12348
8 67584
9 804816
10 5760000
11 116915040
12 686776320
13 19323757440
14 157991178240
15 2951575200000
16 42301705420800
17 1202482800691200
18 10048607738265600
19 425162773111910400
20 4541227794432000000

[1,2,9,32,250,864,12348,67584,804816,5760000,
 116915040,686776320,19323757440,157991178240,
 2951575200000,42301705420800,1202482800691200,
 10048607738265600,425162773111910400,
 4541227794432000000]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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