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A104381 as a simple table

na(n)
11
23
37
49
511
613
717
819
923
1029
1131
1233
1337
1441
1543
1647
1753
1859
1961
2067
2171
2273
2379
2483
2589
2691
2797
2899
29101
30103
31107
32109
33113
34127
35131
36137
37139
38149
39151
40157
41163
42167
43173
44179
45181
46191
47193
48197
49199
50211
51223
52227
53229
54233
55239
56241
57251
58257
59259
60263

[1,3,7,9,11,13,17,19,23,29,31,33,37,41,43,47,53,
 59,61,67,71,73,79,83,89,91,97,99,101,103,107,109,
 113,127,131,137,139,149,151,157,163,167,173,179,
 181,191,193,197,199,211,223,227,229,233,239,241,
 251,257,259,263]