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A046388 as a simple table

na(n)
115
221
333
435
539
651
755
857
965
1069
1177
1285
1387
1491
1593
1695
17111
18115
19119
20123
21129
22133
23141
24143
25145
26155
27159
28161
29177
30183
31185
32187
33201
34203
35205
36209
37213
38215
39217
40219
41221
42235
43237
44247
45249
46253
47259
48265
49267
50287
51291
52295
53299
54301
55303

[15,21,33,35,39,51,55,57,65,69,77,85,87,91,93,95,
 111,115,119,123,129,133,141,143,145,155,159,161,
 177,183,185,187,201,203,205,209,213,215,217,219,
 221,235,237,247,249,253,259,265,267,287,291,295,
 299,301,303]