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A272240 as a simple table

na(n)
19
2245
3128
4125
532
6214375
7250
81331
92057
102197
112187
125021875
13256
14658503
1585184
166875
175120
18148046893
196144
2019683
21327701
2223882769
232048
241830125
25729
263536405
27539
2850653
2919712
3075926359382399
3119683
3281
332000033
34793071909
354131
36313046875
3732805

[9,245,128,125,32,214375,250,1331,2057,2197,2187,
 5021875,256,658503,85184,6875,5120,148046893,6144,
 19683,327701,23882769,2048,1830125,729,3536405,
 539,50653,19712,75926359382399,19683,81,2000033,
 793071909,4131,313046875,32805]