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A102517 as a simple table

na(n)
01
11
2-1
3-2
41
53
6-2
7-5
85
910
10-11
11-21
1222
1343
14-43
15-86
1685
17171
18-170
19-341
20341
21682
22-683
23-1365
241366
252731
26-2731
27-5462
285461
2910923
30-10922
31-21845
3221845
3343690
34-43691
35-87381
3687382
37174763
38-174763
39-349526
40349525
41699051
42-699050
43-1398101
441398101
452796202
46-2796203
47-5592405

[1,1,-1,-2,1,3,-2,-5,5,10,-11,-21,22,43,-43,-86,
 85,171,-170,-341,341,682,-683,-1365,1366,2731,
 -2731,-5462,5461,10923,-10922,-21845,21845,43690,
 -43691,-87381,87382,174763,-174763,-349526,349525,
 699051,-699050,-1398101,1398101,2796202,-2796203,
 -5592405]