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A145195 as a simple table

na(n)
115
227
339
445
551
655
757
863
975
1085
1187
1291
1393
1495
1599
16105
17111
18117
19119
20123
21125
22135
23141
24147
25153
26155
27159
28165
29171
30175
31177
32183
33185
34187
35189
36195
37201
38205
39207
40213
41215
42219
43221
44225
45231
46235
47237
48243
49245
50247
51249
52255
53267
54279
55285

[15,27,39,45,51,55,57,63,75,85,87,91,93,95,99,105,
 111,117,119,123,125,135,141,147,153,155,159,165,
 171,175,177,183,185,187,189,195,201,205,207,213,
 215,219,221,225,231,235,237,243,245,247,249,255,
 267,279,285]