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A209867
as a simple table
n
a(n)
0
1
1
1
2
2
3
4
4
6
5
16
6
12
7
8
8
14
9
8
10
406
11
8
12
56
13
80
14
1686
15
8866
16
8272
17
15178
18
9462
19
938
20
41128
[1,1,2,4,6,16,12,8,14,8,406,8,56,80,1686,8866, 8272,15178,9462,938,41128]