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A174110 as a simple table

na(n)
01
12
21
32
4-1
5-1
61
74
8-3
9-25
105
111382
12-691
13-49
1435
1528936
16-3617
17-131601
1843867
19349222
20-1222277
21-9399643
22854513
23945456364
24-1181820455
25-111190339
2676977927
27332492454406
28-23749461029
29-43079206380025
308615841276005

[1,2,1,2,-1,-1,1,4,-3,-25,5,1382,-691,-49,35,
 28936,-3617,-131601,43867,349222,-1222277,
 -9399643,854513,945456364,-1181820455,-111190339,
 76977927,332492454406,-23749461029,
 -43079206380025,8615841276005]