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A066097
as a simple table
n
a(n)
0
2
1
7
2
10
3
15
4
20
5
23
6
28
7
31
8
36
9
41
10
44
11
49
12
54
13
57
14
62
15
65
16
70
17
75
18
78
19
83
20
86
21
91
22
96
23
99
[2,7,10,15,20,23,28,31,36,41,44,49,54,57,62,65,70, 75,78,83,86,91,96,99]