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A292911 as a simple table

na(n)
11
23
37
49
515
619
721
827
931
1037
1145
1249
1351
1455
1557
1669
1775
1879
1987
2091
2197
2299
23115
24117
25121
26129
27135
28139
29141
30147
31157
32159
33169
34175
35177
36187
37195
38199
39201
40205
41211
42217
43225
44229
45231
46255
47261
48271
49279
50285
51289
52297
53301
54307
55309
56321
57327

[1,3,7,9,15,19,21,27,31,37,45,49,51,55,57,69,75,
 79,87,91,97,99,115,117,121,129,135,139,141,147,
 157,159,169,175,177,187,195,199,201,205,211,217,
 225,229,231,255,261,271,279,285,289,297,301,307,
 309,321,327]