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A239465
as a simple table
n
a(n)
2
1
3
4
4
14
5
2
6
15
7
19
8
26
9
118
10
128
11
1388
12
18588
13
111143
14
11721111115
[1,4,14,2,15,19,26,118,128,1388,18588,111143, 11721111115]