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A038142
as a simple table
n
a(n)
1
1
2
1
3
2
4
5
5
12
6
36
7
118
8
411
9
1489
10
5572
11
21115
12
81121
13
314075
14
1224528
15
4799205
[1,1,2,5,12,36,118,411,1489,5572,21115,81121, 314075,1224528,4799205]