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A323036
as a simple table
n
a(n)
1
3
2
103
3
295
4
6955
5
6955
6
821582
7
1457055
8
191525093
9
570434346
10
10685448370
11
166717504076
12
329466468458
[3,103,295,6955,6955,821582,1457055,191525093, 570434346,10685448370,166717504076,329466468458]