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A072714
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
2
6
3
7
7
8
43
9
452
10
45351
11
125920291
12
60027819184831
[1,1,1,1,2,3,7,43,452,45351,125920291, 60027819184831]