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A227437
as a simple table
n
a(n)
4
10
5
10
6
16
7
18
8
21
9
25
10
29
11
33
12
36
13
41
14
45
15
50
16
55
17
60
18
66
[10,10,16,18,21,25,29,33,36,41,45,50,55,60,66]