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A215441
as a simple table
n
a(n)
1
0
2
1
3
7
4
39
5
97
6
115
7
199
8
1287
9
1411
10
2713
11
4647
12
84985
[0,1,7,39,97,115,199,1287,1411,2713,4647,84985]
