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A328408 as a simple table

na(n)
11
29
327
473
5125
6243
7343
8585
9729
101125
111331
121971
132197
143087
153375
164681
174913
186561
196859
209125
219261
2211979
2312167
2415795
2515625
2619773
2719683
2825039
2924389
3030375
3129791
3237449
3335937
3444217
3542875
3653217
3750653
3861731
3959319
4073125
4168921
4283349
4379507
4497163
4591125

[1,9,27,73,125,243,343,585,729,1125,1331,1971,
 2197,3087,3375,4681,4913,6561,6859,9125,9261,
 11979,12167,15795,15625,19773,19683,25039,24389,
 30375,29791,37449,35937,44217,42875,53217,50653,
 61731,59319,73125,68921,83349,79507,97163,91125]