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A220890 as a simple table

na(n)
0-1
1-1
2-1
32
43
54
65
729
841
955
1071
11881
12791
139360
1410009
151079
1630239
17-1
18246960
19-1
20636481
211360800
223160079
23-1
242162161

[-1,-1,-1,2,3,4,5,29,41,55,71,881,791,9360,10009,
 1079,30239,-1,246960,-1,636481,1360800,3160079,-1,
 2162161]