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A106164
as a simple table
n
a(n)
0
0
1
1
2
0
3
0
4
0
5
0
6
1
7
1
8
1
9
2
10
6
11
8
12
19
13
45
14
148
15
457
16
2448
17
20786
[0,1,0,0,0,0,1,1,1,2,6,8,19,45,148,457,2448,20786]