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A082869
as a simple table
n
a(n)
1
4
2
7
3
9
4
13
5
19
6
23
7
37
8
71
9
89
10
97
11
131
12
167
13
193
14
227
15
229
16
257
17
263
18
269
19
271
[4,7,9,13,19,23,37,71,89,97,131,167,193,227,229, 257,263,269,271]
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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)