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A117363 as a simple table

na(n)
01
1-2
21
3-3
43
5-4
66
7-7
810
9-13
1017
11-23
1230
13-40
1453
15-70
1693
17-123
18163
19-216
20286
21-379
22502
23-665
24881
25-1167
261546
27-2048
282713
29-3594
304761
31-6307
328355
33-11068
3414662
35-19423
3625730
37-34085
3845153
39-59815
4079238

[1,-2,1,-3,3,-4,6,-7,10,-13,17,-23,30,-40,53,-70,
 93,-123,163,-216,286,-379,502,-665,881,-1167,1546,
 -2048,2713,-3594,4761,-6307,8355,-11068,14662,
 -19423,25730,-34085,45153,-59815,79238]