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A228947 as a simple table

na(n)
1-1
20
3-1
41
5-3
64
7-5
83
9-2
104
11-9
1212
13-11
144
151
167
17-15
1815
19-17
2014
21-1
224
23-21
2428
25-14
264
27-5
2816
29-27
3034
31-29
3215
33-5
344
35-11
3643
37-35
384
39-7
4034
41-39
4242
43-41
4420
459
464
47-45
4860
49-34
5023
51-11
5222
53-51
5448
55-23
5640
57-13
584
59-57
6092
61-59

[-1,0,-1,1,-3,4,-5,3,-2,4,-9,12,-11,4,1,7,-15,15,
 -17,14,-1,4,-21,28,-14,4,-5,16,-27,34,-29,15,-5,4,
 -11,43,-35,4,-7,34,-39,42,-41,20,9,4,-45,60,-34,
 23,-11,22,-51,48,-23,40,-13,4,-57,92,-59]