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A165146
as a simple table
n
a(n)
0
1
1
1
2
2
3
5
4
14
5
42
6
136
7
459
8
1594
9
5645
10
20280
11
73659
[1,1,2,5,14,42,136,459,1594,5645,20280,73659]
