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A371958
as a simple table
n
a(n)
1
10
2
10
3
30
4
102
5
120
6
240
7
1260
8
1680
9
8596
10
34580
11
113760
12
576840
13
3579840
14
14938560
15
109133640
[10,10,30,102,120,240,1260,1680,8596,34580,113760, 576840,3579840,14938560,109133640]