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A189675 as a simple table

na(n)
11
2-1
32
42
5-4
63
7-5
810
9-9
105
1114
12-28
1327
14-20
158
16-42
1784
18-84
1970
20-40
2113
22132
23-264
24270
25-240
26160
27-78
2821
29-429
30858
31-891
32825
33-600
34351
35-147
3634
371430
38-2860
393003
40-2860
412200
42-1430
43735
44-272
4555
46-4862
479724
48-10296
4910010
50-8008
515577
52-3234
531496
54-495
5589
5616796
57-33592
5835802
59-35360
6029120
61-21294
6213377
63-7072
642970
65-890
66144
67-58786
68117572
69-125970
70125970
71-106080
7280444
73-53508
7430940
75-15015
765785
77-1584
78233

[1,-1,2,2,-4,3,-5,10,-9,5,14,-28,27,-20,8,-42,84,
 -84,70,-40,13,132,-264,270,-240,160,-78,21,-429,
 858,-891,825,-600,351,-147,34,1430,-2860,3003,
 -2860,2200,-1430,735,-272,55,-4862,9724,-10296,
 10010,-8008,5577,-3234,1496,-495,89,16796,-33592,
 35802,-35360,29120,-21294,13377,-7072,2970,-890,
 144,-58786,117572,-125970,125970,-106080,80444,
 -53508,30940,-15015,5785,-1584,233]