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A205972 as a simple table

na(n)
01
1-6
212
3-12
4-18
50
696
7-156
8252
9-204
100
110
12-864
13-2796
149048
150
16-5922
170
1831008
19-50172
200
21-131352
220
230
24556416
25-450150
262913432
27-1178508
28-3813732
290
300
31-16155228
3226139708
330
340
350
36-89582112
37-289893804
38938116056
39-758951832
400
410
426429943104

[1,-6,12,-12,-18,0,96,-156,252,-204,0,0,-864,
 -2796,9048,0,-5922,0,31008,-50172,0,-131352,0,0,
 556416,-450150,2913432,-1178508,-3813732,0,0,
 -16155228,26139708,0,0,0,-89582112,-289893804,
 938116056,-758951832,0,0,6429943104]