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A108997
as a simple table
n
a(n)
0
1
1
4
2
12
3
24
4
36
5
52
6
68
7
76
8
78
9
72
10
64
11
56
12
40
13
12
14
4
15
1
[1,4,12,24,36,52,68,76,78,72,64,56,40,12,4,1]
