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A066092
as a simple table
n
a(n)
2
2
3
6
4
4
5
20
6
3
7
42
8
8
9
18
10
10
11
110
12
4
13
156
14
14
15
10
16
16
17
272
18
18
19
342
20
5
21
28
22
22
23
506
24
8
25
100
[2,6,4,20,3,42,8,18,10,110,4,156,14,10,16,272,18, 342,5,28,22,506,8,100]