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A081029
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
6
6
8
7
12
8
15
9
18
10
20
11
24
12
30
13
36
14
40
15
42
16
48
17
60
18
72
19
84
20
90
21
120
22
126
23
144
24
180
25
210
26
240
[1,2,3,4,6,8,12,15,18,20,24,30,36,40,42,48,60,72, 84,90,120,126,144,180,210,240]