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A285554 as a simple table

na(n)
00
11
2-2
31
41
5-2
63
7-3
81
91
10-4
118
12-9
135
143
15-12
1618
17-18
1810
195
20-22
2137
22-40
2321
2412
25-47
2672
27-71
2838
2919
30-84
31133
32-135
3373
3438
35-156
36235
37-232
38124
3961
40-264
41407
42-404
43216
44109
45-455
46682
47-664
48354
49172
50-738
511117
52-1094
53582
54286
55-1203
561793

[0,1,-2,1,1,-2,3,-3,1,1,-4,8,-9,5,3,-12,18,-18,10,
 5,-22,37,-40,21,12,-47,72,-71,38,19,-84,133,-135,
 73,38,-156,235,-232,124,61,-264,407,-404,216,109,
 -455,682,-664,354,172,-738,1117,-1094,582,286,
 -1203,1793]