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A073537 as a simple table

na(n)
11
227
3729
42197
51331
66859
724389
8343
93375
109261
1159319
1235937
1315625
1412167
1529791
16125
174913
1879507
1919683
20389017
2191125
22166375
23132651
24117649
25185193
262460375
2750653
2842875
29300763
30250047
31753571
32148877
33205379
3468921
35226981

[1,27,729,2197,1331,6859,24389,343,3375,9261,
 59319,35937,15625,12167,29791,125,4913,79507,
 19683,389017,91125,166375,132651,117649,185193,
 2460375,50653,42875,300763,250047,753571,148877,
 205379,68921,226981]