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A117438 as a simple table

na(n)
01
1-4
21
316
4-12
51
6-64
780
8-24
91
10256
11-448
12240
13-40
141
15-1024
162304
17-1792
18560
19-60
201
214096
22-11264
2311520
24-5376
251120
26-84
271
28-16384
2953248
30-67584
3142240
32-13440
332016
34-112
351
3665536
37-245760
38372736
39-292864
40126720
41-29568
423360
43-144
441

[1,-4,1,16,-12,1,-64,80,-24,1,256,-448,240,-40,1,
 -1024,2304,-1792,560,-60,1,4096,-11264,11520,
 -5376,1120,-84,1,-16384,53248,-67584,42240,-13440,
 2016,-112,1,65536,-245760,372736,-292864,126720,
 -29568,3360,-144,1]