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A319159
as a simple table
n
a(n)
1
1
2
2
3
4
4
7
5
11
6
16
7
22
8
28
9
35
10
44
11
53
12
63
13
74
14
86
[1,2,4,7,11,16,22,28,35,44,53,63,74,86]