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A004064
as a simple table
n
a(n)
1
2
2
3
3
5
4
19
5
97
6
109
7
317
8
353
9
701
10
9739
11
14951
12
37573
13
46889
14
769543
[2,3,5,19,97,109,317,353,701,9739,14951,37573, 46889,769543]