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A195908
as a simple table
n
a(n)
1
1
2
7
3
49
4
343
5
117649
6
823543
7
282475249
8
1977326743
9
11398895185373143
10
378818692265664781682717625943
[1,7,49,343,117649,823543,282475249,1977326743, 11398895185373143,378818692265664781682717625943]