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A147200
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
5
7
13
8
45
9
141
10
593
11
2479
12
13149
13
73679
14
588757
15
5000629
16
56709831
17
657094563
[1,1,1,1,1,5,13,45,141,593,2479,13149,73679, 588757,5000629,56709831,657094563]