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A190791 as a simple table

na(n)
01
12
20
34
4-6
532
6-88
7376
8-1376
95574
10-22232
1191548
12-378736
131589304
14-6719040
1528647592
16-122933470
17530755764
18-2303432600
1910043949684
20-43979901840
21193309672224
22-852599615912
233772221225128
24-16737583019616
2574461240879386

[1,2,0,4,-6,32,-88,376,-1376,5574,-22232,91548,
 -378736,1589304,-6719040,28647592,-122933470,
 530755764,-2303432600,10043949684,-43979901840,
 193309672224,-852599615912,3772221225128,
 -16737583019616,74461240879386]