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A290367
as a simple table
n
a(n)
1
0
2
1
3
3
4
23
5
115
6
13123
7
5698
8
21445
9
1190507
10
85183627
11
25079197
12
3749088082
13
7720370957
[0,1,3,23,115,13123,5698,21445,1190507,85183627, 25079197,3749088082,7720370957]