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A279094 as a simple table

na(n)
12
22
34
42
525
62
759049
84
94
105
11256
122
13282475249
14243
154
162
17729
182
191174562876521148458974062689
208
2164
2216
2325
241331
25594823321
2616807
2738950081
28151
29361
302
31470541197898347534873984161
3219902511
33241081
3427
359
3661
37625
3834271896307633
3973441
4053
411681

[2,2,4,2,25,2,59049,4,4,5,256,2,282475249,243,4,2,
 729,2,1174562876521148458974062689,8,64,16,25,
 1331,594823321,16807,38950081,151,361,2,
 470541197898347534873984161,19902511,241081,27,9,
 61,625,34271896307633,73441,53,1681]