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A144220 as a simple table

na(n)
01
12
2-1
3-3
41
51
6-4
70
84
9-1
105
112
12-10
133
141
156
165
17-20
185
196
20-1
21-7
22-9
2335
245
25-21
265
271
28-8
29-14
3056
310
32-56
3314
348
35-1
369
3720
38-84
39-14
40126
41-28
42-36
437
441
4510
4627
47-120
48-42
49252
50-42
51-120
5227
5310
54-1
55-11
56-35
57165
5890
59-462
6042
61330
62-75
63-55
649
651

[1,2,-1,-3,1,1,-4,0,4,-1,5,2,-10,3,1,6,5,-20,5,6,
 -1,-7,-9,35,5,-21,5,1,-8,-14,56,0,-56,14,8,-1,9,
 20,-84,-14,126,-28,-36,7,1,10,27,-120,-42,252,-42,
 -120,27,10,-1,-11,-35,165,90,-462,42,330,-75,-55,
 9,1]