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A347977 as a simple table

na(n)
12
23
35
47
511
613
717
819
923
1029
1131
1241
1347
1453
1559
1671
1779
1883
1989
2097
21107
22127
23139
24149
25167
26179
27191
28199
29223
30239
31251
32269
33293
34349
35359
36383
37419
38431
39449
40479
41499
42503
43587
44599
45647
46719
47809
48839
49863
50881
51971
521049
531151
541249
551259
561279
571399
581439
591499
601511
611567
621619
631889

[2,3,5,7,11,13,17,19,23,29,31,41,47,53,59,71,79,
 83,89,97,107,127,139,149,167,179,191,199,223,239,
 251,269,293,349,359,383,419,431,449,479,499,503,
 587,599,647,719,809,839,863,881,971,1049,1151,
 1249,1259,1279,1399,1439,1499,1511,1567,1619,1889]