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A230283 as a simple table

na(n)
11
21
3-1
42
5-9
68
7-625
82
9-117649
10128
11-6561
128
13-25937424601
1418
15-23298085122481
1616
17-9
1832768
19-48661191875666868481
20400
21-104127350297911241532841
22648
23-81
24256
25-907846434775996175406740561329
26490
27-59604644775390625
281024
29-2541865828329
301296

[1,1,-1,2,-9,8,-625,2,-117649,128,-6561,8,
 -25937424601,18,-23298085122481,16,-9,32768,
 -48661191875666868481,400,
 -104127350297911241532841,648,-81,256,
 -907846434775996175406740561329,490,
 -59604644775390625,1024,-2541865828329,1296]