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A252748 as a simple table

na(n)
1-1
2-1
3-1
41
5-3
63
7-3
811
97
101
11-9
1221
13-9
145
155
1649
17-15
1839
19-15
2023
2113
22-5
23-17
2487
25-1
26-1
2771
2843
29-27
3045
31-25
32179
33-1
34-11
357
36153
37-33
38-7
397
40109
41-39
4281
43-39
4429
4585
46-5
47-41
48309
4923
5047
51-7
5249
53-47
54267
55-19
56185
571
58-23
59-57
60195
61-55
62-13
63149
64601
65-11
6663
67-63
6835
697
7091
71-69
72531
73-67
74-25
7595
7655
77-11
7899

[-1,-1,-1,1,-3,3,-3,11,7,1,-9,21,-9,5,5,49,-15,39,
 -15,23,13,-5,-17,87,-1,-1,71,43,-27,45,-25,179,-1,
 -11,7,153,-33,-7,7,109,-39,81,-39,29,85,-5,-41,
 309,23,47,-7,49,-47,267,-19,185,1,-23,-57,195,-55,
 -13,149,601,-11,63,-63,35,7,91,-69,531,-67,-25,95,
 55,-11,99]