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A000241
as a simple table
n
a(n)
0
0
1
0
2
0
3
0
4
0
5
1
6
3
7
9
8
18
9
36
10
60
11
100
12
150
13
225
14
315
[0,0,0,0,0,1,3,9,18,36,60,100,150,225,315]