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A275384 as a simple table

na(n)
115
221
333
435
539
642
751
855
957
1065
1169
1277
1378
1485
1587
1691
1793
1895
19105
20110
21111
22114
23115
24119
25123
26129
27133
28141
29143
30145
31155
32159
33161
34170
35177
36183
37185
38186
39187
40195
41201
42203
43205
44209
45213
46215
47217
48219
49221
50222
51230
52231
53235
54237
55247
56249
57253
58258
59259
60265
61267

[15,21,33,35,39,42,51,55,57,65,69,77,78,85,87,91,
 93,95,105,110,111,114,115,119,123,129,133,141,143,
 145,155,159,161,170,177,183,185,186,187,195,201,
 203,205,209,213,215,217,219,221,222,230,231,235,
 237,247,249,253,258,259,265,267]