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A009421 as a simple table

na(n)
110648
227818127
31018108216
411728027648
527081081027
6216108018001
7216648648216
81001801080216
927008100810027
10125112533753375
11125180086413824
12216010800180001
13216064806480216
14216270112515625
151000180010800216
161728648081003375
171812501158328125

[10648,27818127,1018108216,11728027648,
 27081081027,216108018001,216648648216,
 1001801080216,27008100810027,125112533753375,
 125180086413824,216010800180001,216064806480216,
 216270112515625,1000180010800216,1728648081003375,
 1812501158328125]