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A249953 as a simple table

na(n)
113
217
319
429
559
679
789
897
9107
10139
11157
12163
13179
14239
15241
16257
17263
18271
19283
20307
21349
22367
23389
24409
25421
26439
27457
28461
29479
30509
31521
32547
33563
34571
35593
36613
37647
38653
39691
40701
41739
42751
43769
44809
45821
46839
47857
48863
49937
50941
51953
52967
53983
541049
551237
561409
571523
581607

[13,17,19,29,59,79,89,97,107,139,157,163,179,239,
 241,257,263,271,283,307,349,367,389,409,421,439,
 457,461,479,509,521,547,563,571,593,613,647,653,
 691,701,739,751,769,809,821,839,857,863,937,941,
 953,967,983,1049,1237,1409,1523,1607]