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A061058
as a simple table
n
a(n)
1
1
2
2
3
5
4
14
5
42
6
165
7
714
8
3094
9
14858
10
79534
11
447051
12
2714690
13
17395070
[1,2,5,14,42,165,714,3094,14858,79534,447051, 2714690,17395070]