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A087821 as a simple table

n a(n)
0 3
1 5
2 5
3 7
4 7
5 11
6 13
7 13
8 13
9 17
10 17
11 23
12 29
13 31
14 31
15 43
16 43
17 47
18 53
19 53
20 61
21 73
22 83
23 89
24 89
25 103
26 131
27 131
28 173
29 223
30 227
31 241
32 251
33 257
34 311
35 331
36 359
37 443
38 523

[3,5,5,7,7,11,13,13,13,17,17,23,29,31,31,43,43,47,
 53,53,61,73,83,89,89,103,131,131,173,223,227,241,
 251,257,311,331,359,443,523]

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)