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A186304 as a simple table

na(n)
15
221
329
445
569
677
7101
8125
9149
10165
11189
12197
13221
14237
15261
16269
17309
18357
19365
20381
21429
22437
23461
24477
25485
26501
27597
28605
29629
30645
31717
32725
33741
34749
35821
36837
37861
38885
39909
40917
41965
42981
43989
441029

[5,21,29,45,69,77,101,125,149,165,189,197,221,237,
 261,269,309,357,365,381,429,437,461,477,485,501,
 597,605,629,645,717,725,741,749,821,837,861,885,
 909,917,965,981,989,1029]