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A195815
as a simple table
n
a(n)
1
1
2
2
3
3
4
5
5
11
6
188
7
509
8
1730
9
2571
10
3402
11
4407
12
9890
13
18609
14
20456
15
32529
16
38124
17
95087
[1,2,3,5,11,188,509,1730,2571,3402,4407,9890, 18609,20456,32529,38124,95087]