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A223881 as a simple table

na(n)
13
22
319
431
537
679
741
897
953
10139
1171
12157
1383
14199
15211
16229
17131
18271
19137
20307
21331
22337
23173
24367
25379
26197
27439
28227
29499
30263
31547
32281
33577
34293
35197
36199
37601
38607
39619
40661
41227
42229
43691
44239
45727
46383
47269
48811
49829
50283
51431
52877
53467
54937
55313

[3,2,19,31,37,79,41,97,53,139,71,157,83,199,211,
 229,131,271,137,307,331,337,173,367,379,197,439,
 227,499,263,547,281,577,293,197,199,601,607,619,
 661,227,229,691,239,727,383,269,811,829,283,431,
 877,467,937,313]