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A327685 as a simple table

na(n)
19
221
325
427
539
649
757
863
965
1081
1187
1291
13111
14115
15117
16121
17125
18129
19133
20147
21159
22169
23171
24183
25185
26189
27203
28213
29235
30237
31243
32247
33259
34261
35267
36273
37289
38299
39301
40303
41305
42319
43321
44325
45333
46339
47343
48351
49361
50365
51371
52377
53387
54393
55399

[9,21,25,27,39,49,57,63,65,81,87,91,111,115,117,
 121,125,129,133,147,159,169,171,183,185,189,203,
 213,235,237,243,247,259,261,267,273,289,299,301,
 303,305,319,321,325,333,339,343,351,361,365,371,
 377,387,393,399]