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A131946 as a simple table

na(n)
01
1-4
24
3-4
420
5-24
64
7-32
852
9-4
1024
11-48
1220
13-56
1432
15-24
16116
17-72
184
19-80
20120
21-32
2248
23-96
2452
25-124
2656
27-4
28160
29-120
3024
31-128
32244
33-48
3472
35-192
3620
37-152
3880
39-56
40312
41-168
4232
43-176
44240
45-24
4696
47-192
48116
49-228
50124
51-72
52280
53-216
544

[1,-4,4,-4,20,-24,4,-32,52,-4,24,-48,20,-56,32,
 -24,116,-72,4,-80,120,-32,48,-96,52,-124,56,-4,
 160,-120,24,-128,244,-48,72,-192,20,-152,80,-56,
 312,-168,32,-176,240,-24,96,-192,116,-228,124,-72,
 280,-216,4]