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A218886
as a simple table
n
a(n)
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
1
12
12
13
189
14
2306
15
22943
16
204463
17
1957813
18
19180074
[0,0,0,0,0,0,0,0,0,0,1,12,189,2306,22943,204463, 1957813,19180074]