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A284982 as a simple table

na(n)
10
2-1
30
4-4
51
60
7-9
86
9-1
100
11-16
1220
13-8
141
150
16-25
1750
18-35
1910
20-1
210
22-36
23105
24-112
2554
26-12
271
280
29-49
30196
31-294
32210
33-77
3414
35-1
360
37-64
38336
39-672
40660
41-352
42104
43-16
441
450
46-81
47540
48-1386
491782
50-1287
51546
52-135
5318
54-1
550
56-100
57825
58-2640
594290
60-4004
612275
62-800
63170
64-20
651

[0,-1,0,-4,1,0,-9,6,-1,0,-16,20,-8,1,0,-25,50,-35,
 10,-1,0,-36,105,-112,54,-12,1,0,-49,196,-294,210,
 -77,14,-1,0,-64,336,-672,660,-352,104,-16,1,0,-81,
 540,-1386,1782,-1287,546,-135,18,-1,0,-100,825,
 -2640,4290,-4004,2275,-800,170,-20,1]