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A376002
as a simple table
n
a(n)
1
1
2
3
3
5
4
22
5
84
6
99
7
511
8
803
9
9999
10
18887
11
1378751
12
103974046
[1,3,5,22,84,99,511,803,9999,18887,1378751, 103974046]
