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A275272 as a simple table

na(n)
12
23
35
47
511
613
719
831
923
1019
1117
1243
1373
1441
15149
1641
1753
1861
19109
2037
2137
2271
23109
24193
2597
26173
2747
28101
29229
30163
31241
3283
33139
34103
3583
36577
37311
3847
39269
4061
4161
42107
4397
4489
45379
46149
47269
4883
49137
50167
51281
5289
5379
54443
55229
56157
57179
58563
59389

[2,3,5,7,11,13,19,31,23,19,17,43,73,41,149,41,53,
 61,109,37,37,71,109,193,97,173,47,101,229,163,241,
 83,139,103,83,577,311,47,269,61,61,107,97,89,379,
 149,269,83,137,167,281,89,79,443,229,157,179,563,
 389]