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A024484
as a simple table
n
a(n)
2
2
3
3
4
10
5
42
6
198
7
1001
8
5304
9
29070
10
163438
11
937365
12
5462730
13
32256120
14
192565800
[2,3,10,42,198,1001,5304,29070,163438,937365, 5462730,32256120,192565800]