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A259330
as a simple table
n
a(n)
1
1
2
1
3
1
4
202
5
2569966024555163105
6
76230976900860740792605252290337123070878181006452224000000000000
[1,1,1,202,2569966024555163105, 76230976900860740792605252290337123070878181006452\ 224000000000000]