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A260828 as a simple table

n a(n)
1 5
2 7
3 11
4 17
5 71
6 151
7 157
8 557
9 571
10 577
11 751
12 757
13 1117
14 1151
15 1171
16 1511
17 1571
18 1777
19 5171
20 5557
21 5711
22 5717
23 7151
24 7177
25 7517
26 7577
27 7717
28 7757
29 11117
30 11171
31 11177
32 11551
33 11717
34 11777
35 15511
36 15551
37 17117
38 17551
39 51151
40 51157
41 51511
42 51517
43 51551
44 51577

[5,7,11,17,71,151,157,557,571,577,751,757,1117,
 1151,1171,1511,1571,1777,5171,5557,5711,5717,7151,
 7177,7517,7577,7717,7757,11117,11171,11177,11551,
 11717,11777,15511,15551,17117,17551,51151,51157,
 51511,51517,51551,51577]

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Last modified May 14 22:40 EDT 2021. Contains 343909 sequences. (Running on oeis4.)