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A070085 as a simple table

na(n)
11
21
34
41
5-1
64
71
8-3
99
104
112
121
13-5
14-7
159
164
170
1816
191
20-7
21-11
229
237
244
25-2
26-4
2716
281
29-9
30-15
319
32-17
335
3425
354
36-4
37-8
3816
3914
401
41-11
42-19
439
44-23
453
461
4725
484
49-6
50-12
5116
52-14
5312
5436
551
56-13
57-23
589
59-29
601
61-31
62-3
6325
6423
654
66-8

[1,1,4,1,-1,4,1,-3,9,4,2,1,-5,-7,9,4,0,16,1,-7,
 -11,9,7,4,-2,-4,16,1,-9,-15,9,-17,5,25,4,-4,-8,16,
 14,1,-11,-19,9,-23,3,1,25,4,-6,-12,16,-14,12,36,1,
 -13,-23,9,-29,1,-31,-3,25,23,4,-8]