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A103967 as a simple table

na(n)
13
29
317
421
527
629
739
841
947
1051
1159
1271
1381
1487
1589
16113
17117
18119
19131
20137
21141
22159
23161
24177
25189
26201
27239
28263
29287
30291
31299
32333
33359
34371
35377
36389
37393
38399
39443
40459
41461
42467
43471
44489
45509
46539
47573
48603
49623
50653
51657
52659
53663
54671
55681

[3,9,17,21,27,29,39,41,47,51,59,71,81,87,89,113,
 117,119,131,137,141,159,161,177,189,201,239,263,
 287,291,299,333,359,371,377,389,393,399,443,459,
 461,467,471,489,509,539,573,603,623,653,657,659,
 663,671,681]