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A289906
as a simple table
n
a(n)
1
0
2
0
3
3
4
7
5
9
6
12
7
16
8
18
9
24
10
28
11
33
12
39
13
46
14
50
15
60
16
65
17
74
18
83
19
92
20
105
[0,0,3,7,9,12,16,18,24,28,33,39,46,50,60,65,74,83, 92,105]