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A089689 as a simple table

n a(n)
1 3
2 7
3 311
4 313
5 317
6 9733
7 9739
8 10973
9 10979
10 31097317
11 73109731091
12 97310973101
13 97310973103
14 97310973109733
15 7310973109731091
16 73109731097310973109731097
17 97310973109731097310973101

[3,7,311,313,317,9733,9739,10973,10979,31097317,
 73109731091,97310973101,97310973103,
 97310973109733,7310973109731091,
 73109731097310973109731097,
 97310973109731097310973101]

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Last modified May 8 17:32 EDT 2024. Contains 372340 sequences. (Running on oeis4.)