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A261338 as a simple table

na(n)
17
219
329
437
547
659
767
879
989
1097
11109
12127
13149
14157
15167
16179
17199
18229
19239
20257
21269
22277
23293
24307
25317
26349
27359
28367
29379
30389
31397
32419
33439
34449
35457
36479
37487
38499
39509
40557
41569
42587
43599
44607
45619
46647
47659
48677
49683
50691
51719
52727
53739
54743
55757

[7,19,29,37,47,59,67,79,89,97,109,127,149,157,167,
 179,199,229,239,257,269,277,293,307,317,349,359,
 367,379,389,397,419,439,449,457,479,487,499,509,
 557,569,587,599,607,619,647,659,677,683,691,719,
 727,739,743,757]