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A106867 as a simple table

na(n)
12
23
313
429
531
641
747
871
973
10127
11131
12139
13151
14163
15179
16193
17197
18233
19239
20257
21269
22277
23311
24331
25349
26353
27397
28409
29439
30443
31461
32487
33491
34499
35509
36541
37547
38577
39587
40601
41647
42653
43673
44683
45739
46761
47811
48823
49857
50859
51863
52887
53929
54947

[2,3,13,29,31,41,47,71,73,127,131,139,151,163,179,
 193,197,233,239,257,269,277,311,331,349,353,397,
 409,439,443,461,487,491,499,509,541,547,577,587,
 601,647,653,673,683,739,761,811,823,857,859,863,
 887,929,947]