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A055870 as a simple table

na(n)
01
11
2-1
31
4-1
5-1
61
7-2
8-2
91
101
11-3
12-6
133
141
151
16-5
17-15
1815
195
20-1
211
22-8
23-40
2460
2540
26-8
27-1
281
29-13
30-104
31260
32260
33-104
34-13
351
361
37-21
38-273
391092
401820
41-1092
42-273
4321
441
451
46-34
47-714
484641
4912376
50-12376
51-4641
52714
5334
54-1
551
56-55
57-1870
5819635
5985085
60-136136
61-85085
6219635
631870
64-55
65-1

[1,1,-1,1,-1,-1,1,-2,-2,1,1,-3,-6,3,1,1,-5,-15,15,
 5,-1,1,-8,-40,60,40,-8,-1,1,-13,-104,260,260,-104,
 -13,1,1,-21,-273,1092,1820,-1092,-273,21,1,1,-34,
 -714,4641,12376,-12376,-4641,714,34,-1,1,-55,
 -1870,19635,85085,-136136,-85085,19635,1870,-55,
 -1]