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A006599
as a simple table
n
a(n)
1
0
2
1
3
2
4
5
5
9
6
14
7
78
8
81
9
141
10
189
11
498
12
5070
13
7349
[0,1,2,5,9,14,78,81,141,189,498,5070,7349]