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A362102
as a simple table
n
a(n)
0
1
1
1
2
13
3
68
4
399
5
2530
6
16965
7
118668
8
857956
9
6369883
10
48336171
[1,1,13,68,399,2530,16965,118668,857956,6369883, 48336171]