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A363002
as a simple table
n
a(n)
0
1
1
1
2
1
3
2
4
5
5
17
6
82
7
573
8
5839
9
86921
10
1890317
11
60013894
12
2778068147
[1,1,1,2,5,17,82,573,5839,86921,1890317,60013894, 2778068147]