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A097945 as a simple table

na(n)
11
2-1
3-2
40
5-4
62
7-6
80
90
104
11-10
120
13-12
146
158
160
17-16
180
19-18
200
2112
2210
23-22
240
250
2612
270
280
29-28
30-8
31-30
320
3320
3416
3524
360
37-36
3818
3924
400
41-40
42-12
43-42
440
450
4622
47-46
480
490
500
5132
520
53-52
540
5540
560
5736
5828
59-58
600
61-60
6230
630
640
6548
66-20
67-66
680
6944
70-24
71-70
720
73-72
7436
750
760
7760
78-24
79-78
800
810
8240
83-82
840

[1,-1,-2,0,-4,2,-6,0,0,4,-10,0,-12,6,8,0,-16,0,
 -18,0,12,10,-22,0,0,12,0,0,-28,-8,-30,0,20,16,24,
 0,-36,18,24,0,-40,-12,-42,0,0,22,-46,0,0,0,32,0,
 -52,0,40,0,36,28,-58,0,-60,30,0,0,48,-20,-66,0,44,
 -24,-70,0,-72,36,0,0,60,-24,-78,0,0,40,-82,0]