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A350398
as a simple table
n
a(n)
1
1
2
3
3
4
4
6
5
7
6
8
7
9
8
10
9
11
10
12
11
13
12
14
13
15
14
16
15
21
16
24
17
30
18
31
19
34
20
36
21
42
22
45
23
49
24
63
[1,3,4,6,7,8,9,10,11,12,13,14,15,16,21,24,30,31, 34,36,42,45,49,63]