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A208270 as a simple table

na(n)
111
213
317
419
531
641
761
871
9101
10103
11107
12109
13113
14127
15131
16137
17139
18149
19151
20157
21163
22167
23173
24179
25181
26191
27193
28197
29199
30211
31241
32251
33271
34281
35311
36313
37317
38331
39401
40419
41421
42431
43461
44491
45521
46541
47571
48601
49613
50617
51619
52631
53641
54661

[11,13,17,19,31,41,61,71,101,103,107,109,113,127,
 131,137,139,149,151,157,163,167,173,179,181,191,
 193,197,199,211,241,251,271,281,311,313,317,331,
 401,419,421,431,461,491,521,541,571,601,613,617,
 619,631,641,661]