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A000947
as a simple table
n
a(n)
7
1
8
2
9
4
10
10
11
15
12
44
13
56
14
177
15
212
16
706
17
792
18
2714
19
2961
[1,2,4,10,15,44,56,177,212,706,792,2714,2961]