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A141651 as a simple table

na(n)
12
22
311
42
55
619
743
823
919
1031
1123
1279
1329
1459
1543
16139
17179
18181
1931
20223
21233
2279
23281
24293
25151
26157
27317
2853
29163
30109
31337
32359
33181
3443
35199
3683
37109
38463
39467
40241
41491
42523
4389
44607
45103
46631
4779
48643
49673
50233
5189
52179
53757
54773
5589
56821
57823
58839
59859
60433
61293

[2,2,11,2,5,19,43,23,19,31,23,79,29,59,43,139,179,
 181,31,223,233,79,281,293,151,157,317,53,163,109,
 337,359,181,43,199,83,109,463,467,241,491,523,89,
 607,103,631,79,643,673,233,89,179,757,773,89,821,
 823,839,859,433,293]