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A290250
as a simple table
n
a(n)
1
1248829
2
13
3
1091
4
13
5
41
6
37
7
463
8
13
9
23
10
13
11
1667
12
37
13
23
14
13
15
41
16
13
17
139
[1248829,13,1091,13,41,37,463,13,23,13,1667,37,23, 13,41,13,139]