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A257100 as a simple table

na(n)
11
2-1
3-1
4-3
5-1
61
7-1
8-7
9-3
101
11-1
123
13-1
141
151
16-77
17-1
183
19-1
203
211
221
23-1
247
25-3
261
27-7
283
29-1
30-1
31-1
32-231
331
341
351
369
37-1
381
391
407
41-1
42-1
43-1
443
453
461
47-1
4877
49-3
503
511
523
53-1
547
551
567
571
581
59-1
60-3
61-1
621
633
64-1463
651
66-1
67-1
683
691
70-1
71-1
7221
73-1
741
753
763
771
78-1
79-1
8077
81-77
821
83-1
84-3
851
861
871
887
89-1
90-3
911
923
931
941
951
96231
97-1
983
993
1009

[1,-1,-1,-3,-1,1,-1,-7,-3,1,-1,3,-1,1,1,-77,-1,3,
 -1,3,1,1,-1,7,-3,1,-7,3,-1,-1,-1,-231,1,1,1,9,-1,
 1,1,7,-1,-1,-1,3,3,1,-1,77,-3,3,1,3,-1,7,1,7,1,1,
 -1,-3,-1,1,3,-1463,1,-1,-1,3,1,-1,-1,21,-1,1,3,3,
 1,-1,-1,77,-77,1,-1,-3,1,1,1,7,-1,-3,1,3,1,1,1,
 231,-1,3,3,9]