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A024556 as a simple table

na(n)
115
221
333
435
539
651
755
857
965
1069
1177
1285
1387
1491
1593
1695
17105
18111
19115
20119
21123
22129
23133
24141
25143
26145
27155
28159
29161
30165
31177
32183
33185
34187
35195
36201
37203
38205
39209
40213
41215
42217
43219
44221
45231
46235
47237
48247
49249
50253
51255
52259
53265
54267
55273

[15,21,33,35,39,51,55,57,65,69,77,85,87,91,93,95,
 105,111,115,119,123,129,133,141,143,145,155,159,
 161,165,177,183,185,187,195,201,203,205,209,213,
 215,217,219,221,231,235,237,247,249,253,255,259,
 265,267,273]