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A376898
as a simple table
n
a(n)
1
1
2
2
3
5
4
7
5
10
6
11
7
14
8
15
9
22
10
30
11
37
12
41
13
49
14
61
15
74
16
98
17
122
[1,2,5,7,10,11,14,15,22,30,37,41,49,61,74,98,122]