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A091184 as a simple table

na(n)
13
27
321
43
521
621
79
89
93
1023
11291
123
13149
143
15137
16489
1747
18189
1963
2051
21103
22271
2359
24237
25331
26369
27531
28417
29249
3057
31223
32297
3329
34217
35473
36237
37571
38451
39279
401457
41869
42213
43317
44609
45239
4657
47417
48583
49879
50493
51221
52989
537
54819
551389
56423
5727
58733
59309

[3,7,21,3,21,21,9,9,3,23,291,3,149,3,137,489,47,
 189,63,51,103,271,59,237,331,369,531,417,249,57,
 223,297,29,217,473,237,571,451,279,1457,869,213,
 317,609,239,57,417,583,879,493,221,989,7,819,1389,
 423,27,733,309]