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A079528 as a simple table

na(n)
1-1
2-1
3-1
41
5-2
63
7-2
84
91
104
11-3
1212
13-3
146
155
1611
17-4
1816
19-4
2017
216
229
23-4
2431
251
2610
277
2822
29-5
3036
31-5
3225
339
3414
357
3649
37-6
3815
3910
4043
41-6
4247
43-6
4433
4526
4619
47-6
4869
491
5035
5113
5238
53-7
5458
559
5656
5715
5824
59-7
60100
61-7
6226
6333
6455
6510
6669
67-8
6849
6918
7065
71-8
72114
73-8
7431
7540
7655
7710
7881
79-8
8097

[-1,-1,-1,1,-2,3,-2,4,1,4,-3,12,-3,6,5,11,-4,16,
 -4,17,6,9,-4,31,1,10,7,22,-5,36,-5,25,9,14,7,49,
 -6,15,10,43,-6,47,-6,33,26,19,-6,69,1,35,13,38,-7,
 58,9,56,15,24,-7,100,-7,26,33,55,10,69,-8,49,18,
 65,-8,114,-8,31,40,55,10,81,-8,97]