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A138022 as a simple table

na(n)
11
2-1
31
41
5-2
61
7-3
83
9-3
101
119
12-12
136
14-4
151
16-45
1745
18-30
1910
20-5
211
22225
23-270
24135
25-60
2615
27-6
281
29-1575
301575
31-945
32315
33-105
3421
35-7
361
3711025
38-12600
396300
40-2520
41630
42-168
4328
44-8
451
46-99225
4799225
48-56700
4918900
50-5670
511134
52-252
5336
54-9
551
56893025
57-992250
58496125
59-189000
6047250
61-11340
621890
63-360
6445
65-10
661

[1,-1,1,1,-2,1,-3,3,-3,1,9,-12,6,-4,1,-45,45,-30,
 10,-5,1,225,-270,135,-60,15,-6,1,-1575,1575,-945,
 315,-105,21,-7,1,11025,-12600,6300,-2520,630,-168,
 28,-8,1,-99225,99225,-56700,18900,-5670,1134,-252,
 36,-9,1,893025,-992250,496125,-189000,47250,
 -11340,1890,-360,45,-10,1]