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A338358 as a simple table

na(n)
11
22
3-1
43
5-1
65
7-3
87
9-6
101
113
12-1
1311
14-9
1513
16-11
173
18-2
191
2017
21-15
2219
23-18
241
253
26-1
2723
28-21
295
30-3
311
324
33-3
3429
35-27
3631
37-29
383
39-1
405
41-3
4237
43-35
443
45-1
4641
47-39
4843
49-42
501
513
52-1
5347
54-45
557
56-6
571
583
59-2
601
6153
62-51
635
64-3
652
6659
67-57
6861
69-59
703
71-2
721
735
74-3
7567

[1,2,-1,3,-1,5,-3,7,-6,1,3,-1,11,-9,13,-11,3,-2,1,
 17,-15,19,-18,1,3,-1,23,-21,5,-3,1,4,-3,29,-27,31,
 -29,3,-1,5,-3,37,-35,3,-1,41,-39,43,-42,1,3,-1,47,
 -45,7,-6,1,3,-2,1,53,-51,5,-3,2,59,-57,61,-59,3,
 -2,1,5,-3,67]