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The On-Line Encyclopedia of Integer Sequences
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A129943
as a simple table
n
a(n)
1
2
2
3
3
5
4
17
5
19
6
23
7
31
8
37
9
47
10
227
11
233
12
311
13
313
14
317
15
331
16
919
17
997
18
2371
19
2389
20
10601
21
111443
22
817337
[2,3,5,17,19,23,31,37,47,227,233,311,313,317,331, 919,997,2371,2389,10601,111443,817337]