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A274685 as a simple table

na(n)
119
227
329
457
559
679
787
889
995
10109
11133
12135
13139
14145
15149
16171
17177
18179
19189
20199
21203
22209
23229
24237
25239
26247
27261
28267
29269
30285
31295
32297
33319
34323
35327
36343
37349
38351
39359
40377
41379
42389
43395
44399
45409
46413
47417
48419
49435
50437
51439
52445
53447
54449
55459
56475
57479
58493
59499

[19,27,29,57,59,79,87,89,95,109,133,135,139,145,
 149,171,177,179,189,199,203,209,229,237,239,247,
 261,267,269,285,295,297,319,323,327,343,349,351,
 359,377,379,389,395,399,409,413,417,419,435,437,
 439,445,447,449,459,475,479,493,499]