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A040988 as a simple table

na(n)
12
23
35
47
511
613
717
819
923
1029
1137
1243
1347
1453
1559
1667
1773
1879
1983
2089
2197
22103
23107
24109
25113
26127
27137
28139
29149
30157
31163
32167
33173
34179
35193
36197
37199
38223
39227
40229
41233
42239
43241
44257
45263
46269
47277
48283

[2,3,5,7,11,13,17,19,23,29,37,43,47,53,59,67,73,
 79,83,89,97,103,107,109,113,127,137,139,149,157,
 163,167,173,179,193,197,199,223,227,229,233,239,
 241,257,263,269,277,283]