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A124031 as a simple table

na(n)
1-1
2-1
3-1
4-2
50
61
73
83
9-1
10-1
115
120
13-5
140
151
16-8
17-8
186
196
20-1
21-1
22-13
230
2419
250
26-8
270
281
2921
3021
31-25
32-25
339
349
35-1
36-1
3734
380
39-65
400
4142
420
43-11
440
451
46-55
47-55
4890
4990
50-51
51-51
5212
5312
54-1
55-1
56-89
570
58210
590
60-183
610
6274
630
64-14
650
661

[-1,-1,-1,-2,0,1,3,3,-1,-1,5,0,-5,0,1,-8,-8,6,6,
 -1,-1,-13,0,19,0,-8,0,1,21,21,-25,-25,9,9,-1,-1,
 34,0,-65,0,42,0,-11,0,1,-55,-55,90,90,-51,-51,12,
 12,-1,-1,-89,0,210,0,-183,0,74,0,-14,0,1]