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A215594 as a simple table

na(n)
01
1-2
22
3-2
40
52
6-4
76
8-4
90
106
11-12
1214
13-10
140
1514
16-26
1730
18-22
190
2028
21-52
2260
23-42
240
2554
26-100
27112
28-78
290
30100
31-180
32202
33-140
340
35174
36-314
37350
38-240
390
40296
41-532
42588
43-402
440
45492
46-876
47966
48-658
490
50794
51-1412
521550
53-1050
540
551260
56-2232

[1,-2,2,-2,0,2,-4,6,-4,0,6,-12,14,-10,0,14,-26,30,
 -22,0,28,-52,60,-42,0,54,-100,112,-78,0,100,-180,
 202,-140,0,174,-314,350,-240,0,296,-532,588,-402,
 0,492,-876,966,-658,0,794,-1412,1550,-1050,0,1260,
 -2232]