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A268391 as a simple table

na(n)
12
23
35
47
58
611
713
817
919
1023
1127
1229
1331
1432
1537
1641
1743
1847
1953
2059
2161
2267
2371
2473
2579
2683
2789
2897
29101
30103
31107
32109
33113
34125
35127
36131
37137
38139
39149
40151
41157
42163
43167
44173
45179
46181
47191
48193
49197
50199
51211
52223
53227
54229
55233
56239
57241
58243
59251
60257
61263
62269
63271
64277
65281
66283
67293
68307
69311
70313

[2,3,5,7,8,11,13,17,19,23,27,29,31,32,37,41,43,47,
 53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,
 125,127,131,137,139,149,151,157,163,167,173,179,
 181,191,193,197,199,211,223,227,229,233,239,241,
 243,251,257,263,269,271,277,281,283,293,307,311,
 313]