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A078229
as a simple table
n
a(n)
1
3
2
3
3
3
4
3
5
7
6
15
7
9
8
129
9
685
10
6161
11
610297
12
273165705
13
337025079889
[3,3,3,3,7,15,9,129,685,6161,610297,273165705, 337025079889]