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A178954 as a simple table

na(n)
12
23
37
419
523
643
747
873
979
10109
11113
12149
13163
14199
15223
16227
17229
18239
19241
20269
21271
22281
23283
24293
25313
26317
27463
28467
29499
30503
31509
32523
33619
34659
35661
36673
37677
38683
39691
40719
41829
42839
43859
44883
45887
46967
471049
481063
491069
501109
511117
521129
531153
541163
551201

[2,3,7,19,23,43,47,73,79,109,113,149,163,199,223,
 227,229,239,241,269,271,281,283,293,313,317,463,
 467,499,503,509,523,619,659,661,673,677,683,691,
 719,829,839,859,883,887,967,1049,1063,1069,1109,
 1117,1129,1153,1163,1201]