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A002775 formatted as a simple table:

n a(n)
0 0
1 1
2 8
3 54
4 384
5 3000
6 25920
7 246960
8 2580480
9 29393280
10 362880000
11 4829932800
12 68976230400
13 1052366515200
14 17086945075200
15 294226732800000
16 5356234211328000
17 102793666719744000
18 2074369080655872000
19 43913881247588352000
20 973160803270656000000
21 22531105497723863040000

[0,1,8,54,384,3000,25920,246960,2580480,29393280,
 362880000,4829932800,68976230400,1052366515200,
 17086945075200,294226732800000,5356234211328000,
 102793666719744000,2074369080655872000,
 43913881247588352000,973160803270656000000,
 22531105497723863040000]

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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