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A043904 as a simple table

na(n)
111
231
347
471
583
6103
7119
8139
9155
10175
11191
12211
13227
14247
15263
16287
17299
18319
19335
20355
21371
22391
23431
24443
25463
26479
27503
28515
29535
30551
31571
32587
33607
34623
35643
36659
37679
38695
39719
40731
41751
42767
43787
44803
45823
46839
47859

[11,31,47,71,83,103,119,139,155,175,191,211,227,
 247,263,287,299,319,335,355,371,391,431,443,463,
 479,503,515,535,551,571,587,607,623,643,659,679,
 695,719,731,751,767,787,803,823,839,859]