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A192281 as a simple table

na(n)
15
27
311
417
519
629
743
847
961
1071
1179
1289
13101
14107
15109
16151
17191
18197
19223
20251
21271
22317
23349
24359
25421
26439
27461
28521
29569
30601
31631
32659
33673
34691
35701
36719
37811
38821
39881
40911
41919
42947
43971
44991
451009
461051
471091
481109
491153
501181
511217
521231

[5,7,11,17,19,29,43,47,61,71,79,89,101,107,109,
 151,191,197,223,251,271,317,349,359,421,439,461,
 521,569,601,631,659,673,691,701,719,811,821,881,
 911,919,947,971,991,1009,1051,1091,1109,1153,1181,
 1217,1231]