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A128411 as a simple table

na(n)
01
1-2
21
34
4-8
52
6-8
736
8-24
94
1016
11-128
12160
13-64
148
15-32
16400
17-800
18560
19-160
2016
2164
22-1152
233360
24-3584
251728
26-384
2732
28-128
293136
30-12544
3118816
32-13440
334928
34-896
3564
36256
37-8192
3843008
39-86016
4084480
41-45056
4213312

[1,-2,1,4,-8,2,-8,36,-24,4,16,-128,160,-64,8,-32,
 400,-800,560,-160,16,64,-1152,3360,-3584,1728,
 -384,32,-128,3136,-12544,18816,-13440,4928,-896,
 64,256,-8192,43008,-86016,84480,-45056,13312]