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A108381
as a simple table
n
a(n)
1
1
2
1
3
1
4
2
5
3
6
3
7
8
8
9
9
16
10
17
11
62
12
23
13
186
14
95
15
280
16
240
17
1963
18
225
19
6830
20
1091
[1,1,1,2,3,3,8,9,16,17,62,23,186,95,280,240,1963, 225,6830,1091]