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A208209
as a simple table
n
a(n)
0
1
1
1
2
1
3
2
4
5
5
101
6
127513
7
33172764857794
8
177153971843949087009428690473769185
[1,1,1,2,5,101,127513,33172764857794, 177153971843949087009428690473769185]