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A119972 as a simple table

na(n)
11
22
3-3
44
55
6-6
7-7
88
99
1010
11-11
12-12
1313
14-14
15-15
1616
1717
1818
19-19
2020
2121
22-22
23-23
24-24
2525
2626
27-27
28-28
2929
30-30
31-31
3232
3333
3434
35-35
3636
3737
38-38
39-39
4040
4141
4242
43-43
44-44
4545
46-46
47-47
48-48
4949
5050
51-51
5252
5353
54-54
55-55
56-56
5757
5858
59-59
60-60
6161
62-62
63-63
6464
6565
6666
67-67
6868
6969
70-70
71-71
7272
7373
7474
75-75

[1,2,-3,4,5,-6,-7,8,9,10,-11,-12,13,-14,-15,16,17,
 18,-19,20,21,-22,-23,-24,25,26,-27,-28,29,-30,-31,
 32,33,34,-35,36,37,-38,-39,40,41,42,-43,-44,45,
 -46,-47,-48,49,50,-51,52,53,-54,-55,-56,57,58,-59,
 -60,61,-62,-63,64,65,66,-67,68,69,-70,-71,72,73,
 74,-75]