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A357305
as a simple table
n
a(n)
1
2
2
3
3
5
4
11
5
45
6
181
7
48589783221
8
66537313397
9
398064946368587
10
796095014224053
[2,3,5,11,45,181,48589783221,66537313397, 398064946368587,796095014224053]