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A357357
as a simple table
n
a(n)
1
0
2
4
3
8
4
12
5
16
6
20
7
32
8
40
9
50
10
62
11
76
12
90
13
104
14
120
15
140
16
160
17
180
[0,4,8,12,16,20,32,40,50,62,76,90,104,120,140,160, 180]