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A025583 as a simple table

na(n)
127
235
351
457
565
677
787
893
995
10117
11119
12121
13123
14125
15135
16143
17145
18147
19155
20161
21171
22177
23185
24187
25189
26203
27205
28207
29209
30215
31217
32219
33221
34237
35245
36247
37249
38255
39261
40267
41275
42287
43289
44291
45297
46299
47301
48303
49305
50321
51323
52325
53327
54329
55335
56341

[27,35,51,57,65,77,87,93,95,117,119,121,123,125,
 135,143,145,147,155,161,171,177,185,187,189,203,
 205,207,209,215,217,219,221,237,245,247,249,255,
 261,267,275,287,289,291,297,299,301,303,305,321,
 323,325,327,329,335,341]