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A191177 as a simple table

na(n)
11
23
39
421
527
633
775
881
999
10105
11129
12183
13237
14243
15291
16297
17315
18321
19387
20393
21417
22513
23669
24723
25729
26885
27891
28939
29945
30963
31969
321155
331161
341179
351185
361251
371257
381281

[1,3,9,21,27,33,75,81,99,105,129,183,237,243,291,
 297,315,321,387,393,417,513,669,723,729,885,891,
 939,945,963,969,1155,1161,1179,1185,1251,1257,
 1281]