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A234844
as a simple table
n
a(n)
1
1
2
2
3
4
4
11
5
27
6
89
7
310
8
1311
9
6253
10
34325
11
212247
12
1466180
13
11167987
14
92889294
15
836021796
[1,2,4,11,27,89,310,1311,6253,34325,212247, 1466180,11167987,92889294,836021796]