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A068580
as a simple table
n
a(n)
1
1
2
5
3
7
4
15
5
21
6
22
7
26
8
40
9
56
10
66
11
70
12
78
13
108
14
120
15
126
16
168
17
210
[1,5,7,15,21,22,26,40,56,66,70,78,108,120,126,168, 210]