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A319354 as a simple table

na(n)
12
23
33
427
53
61215
73
8729
927
10729
113
1293002175
133
14729
151215
1659049
173
1839858075
193
2014348907
21729
22729
233
24576626970315375
2527
26729
27729
2823914845
293
30176518460300625
313
3214348907
33729
34729
35729
366305415920398625625
373
38729
39729
4038127987424935
413
4263546645708225
433
4414348907
4566430125
46729
473
48289588836976147679079375
4927
5014348907
51729

[2,3,3,27,3,1215,3,729,27,729,3,93002175,3,729,
 1215,59049,3,39858075,3,14348907,729,729,3,
 576626970315375,27,729,729,23914845,3,
 176518460300625,3,14348907,729,729,729,
 6305415920398625625,3,729,729,38127987424935,3,
 63546645708225,3,14348907,66430125,729,3,
 289588836976147679079375,27,14348907,729]