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A146224
as a simple table
n
a(n)
1
1
2
1
3
1
4
29
5
221
6
2091
7
47147
8
1321607
9
74618535
10
6202582309
11
806462292673
[1,1,1,29,221,2091,47147,1321607,74618535, 6202582309,806462292673]