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A306397 as a simple table

na(n)
13
216
3147
42304
561347
62768896
7211579212
827349221376
95977081440300
102207706749337600
111377785820669766875

[3,16,147,2304,61347,2768896,211579212,
 27349221376,5977081440300,2207706749337600,
 1377785820669766875]