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A105878 as a simple table

na(n)
113
217
319
423
541
647
761
867
971
1089
11109
12113
13137
14157
15167
16211
17229
18233
19257
20263
21277
22283
23331
24359
25373
26383
27397
28401
29449
30479
31503
32521
33523
34547
35569
36593
37599
38613
39619
40641
41647
42661
43691
44709
45719
46733
47739
48743
49757
50761
51787
52809
53811
54829
55839
56853

[13,17,19,23,41,47,61,67,71,89,109,113,137,157,
 167,211,229,233,257,263,277,283,331,359,373,383,
 397,401,449,479,503,521,523,547,569,593,599,613,
 619,641,647,661,691,709,719,733,739,743,757,761,
 787,809,811,829,839,853]