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A307860 as a simple table

na(n)
01
11
21
31
41
51
61
71
8-1
91
101
111
12-3
13-5
141
151
161
17-5
18-11
19-5
201
211
221
23-7
24-17
251
2611
271
281
291
30-9
31-23
3219
3381
3441
351
361
371
38-11
39-29
4049
41211
42141
4329
441
451
461
47-13
48-35
4991
50401
51181
52-363
53-125
541
551
561
57-15
58-41
59145
60651
6141
62-2015
63-1791
64-365
651

[1,1,1,1,1,1,1,1,-1,1,1,1,-3,-5,1,1,1,-5,-11,-5,1,
 1,1,-7,-17,1,11,1,1,1,-9,-23,19,81,41,1,1,1,-11,
 -29,49,211,141,29,1,1,1,-13,-35,91,401,181,-363,
 -125,1,1,1,-15,-41,145,651,41,-2015,-1791,-365,1]