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A367349
as a simple table
n
a(n)
1
4
2
10
3
15
4
20
5
24
6
30
7
40
8
44
9
50
10
60
11
64
12
65
13
70
14
80
15
84
16
90
[4,10,15,20,24,30,40,44,50,60,64,65,70,80,84,90]