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A003521
as a simple table
n
a(n)
1
1
2
7
3
37
4
58
5
163
6
4687
7
30178
8
30493
9
47338
10
83218
11
106177
12
134773
13
288502
14
991027
[1,7,37,58,163,4687,30178,30493,47338,83218, 106177,134773,288502,991027]