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A155937 as a simple table

na(n)
13
25
311
417
521
623
727
835
941
1045
1147
1263
1365
1475
1577
1681
1783
1893
19101
20105
21107
22111
23123
24137
25143
26153
27165
28167
29177
30195
31201
32203
33207
34213
35215
36231
37233
38237
39243
40251
41255
42273
43275
44287
45303
46311
47317
48327
49333
50335
51341
52345
53347
54353
55357
56371

[3,5,11,17,21,23,27,35,41,45,47,63,65,75,77,81,83,
 93,101,105,107,111,123,137,143,153,165,167,177,
 195,201,203,207,213,215,231,233,237,243,251,255,
 273,275,287,303,311,317,327,333,335,341,345,347,
 353,357,371]