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A060406
as a simple table
n
a(n)
1
0
2
0
3
1
4
1
5
2
6
4
7
7
8
8
9
12
10
13
11
17
12
20
13
26
14
28
15
35
16
37
17
44
18
48
19
57
20
60
21
70
22
73
23
83
24
88
25
100
26
104
[0,0,1,1,2,4,7,8,12,13,17,20,26,28,35,37,44,48,57, 60,70,73,83,88,100,104]