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A245229 as a simple table

na(n)
17
247
361
4103
5113
6211
7223
8229
9311
10337
11401
12419
13491
14787
151021
161453
171489
181697
192039
203659
214703
225279

[7,47,61,103,113,211,223,229,311,337,401,419,491,
 787,1021,1453,1489,1697,2039,3659,4703,5279]