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A215353 as a simple table

na(n)
12
23
323
441
559
661
779
897
9101
10137
11139
12173
13193
14211
15251
16269
17307
18367
19383
20401
21421
22439
23443
24479
25557
26593
27631
28709
29743
30821
31823
32839
33857
34859
35877
36937
37953
38971
39991
401009
411013
421049
431051
441087
451123
461163
471181
481201
491237
501277

[2,3,23,41,59,61,79,97,101,137,139,173,193,211,
 251,269,307,367,383,401,421,439,443,479,557,593,
 631,709,743,821,823,839,857,859,877,937,953,971,
 991,1009,1013,1049,1051,1087,1123,1163,1181,1201,
 1237,1277]