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A084387
as a simple table
n
a(n)
1
1
2
3
3
8
4
9
5
12
6
15
7
17
8
18
9
19
10
22
11
24
12
28
13
30
14
35
15
36
16
37
17
38
18
40
19
41
20
44
21
48
22
54
23
55
24
56
25
57
[1,3,8,9,12,15,17,18,19,22,24,28,30,35,36,37,38, 40,41,44,48,54,55,56,57]