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A213686 as a simple table

na(n)
113
233
337
453
561
673
785
889
993
10109
11113
12133
13141
14145
15153
16157
17173
18181
19193
20201
21205
22213
23229
24233
25245
26253
27257
28273
29277
30293
31297
32301
33313
34317
35325
36333
37349
38353
39369
40373
41393
42397
43401
44405
45413
46421
47425
48433
49445
50453
51469
52473
53481

[13,33,37,53,61,73,85,89,93,109,113,133,141,145,
 153,157,173,181,193,201,205,213,229,233,245,253,
 257,273,277,293,297,301,313,317,325,333,349,353,
 369,373,393,397,401,405,413,421,425,433,445,453,
 469,473,481]