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A303822 as a simple table

na(n)
11
23
33
427
53
69
73
827
927
109
113
1281
133
149
159
167625597484987
173
1881
193
2081
219
229
233
2481
2527
269
2727
2881
293
3027
313
3227
339
349
359
36729
373
389
399
4081
413
4227
433
4481
4581
469
473
4822876792454961
4927
5081
519
5281
533
5481
559
5681
579
589
593
60243
613
629
6381
6419683
659
6627
673
6881

[1,3,3,27,3,9,3,27,27,9,3,81,3,9,9,7625597484987,
 3,81,3,81,9,9,3,81,27,9,27,81,3,27,3,27,9,9,9,729,
 3,9,9,81,3,27,3,81,81,9,3,22876792454961,27,81,9,
 81,3,81,9,81,9,9,3,243,3,9,81,19683,9,27,3,81]