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A328302
as a simple table
n
a(n)
1
4
2
1
3
9
4
50
5
306
6
5831
7
20230
8
52283
9
286891
10
10820131
11
38452606
[4,1,9,50,306,5831,20230,52283,286891,10820131, 38452606]