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A392338
as a simple table
n
a(n)
2
1
3
9
4
48
5
50
6
2205
7
147
8
1120
9
324
10
5175
11
605
12
6336
13
1014
[1,9,48,50,2205,147,1120,324,5175,605,6336,1014]
