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A084202 as a simple table

na(n)
01
11
20
31
40
51
6-1
72
8-2
94
10-6
1110
12-16
1327
14-44
1575
16-127
17218
18-375
19650
20-1130
211974
22-3460
236086
24-10736
2518993
26-33685
2759882
28-106683
29190446
30-340611
31610243
32-1095102
331968200
34-3542468
356384518
36-11521308
3720815942
38-37651528
3968176596
40-123574852
41224204708
42-407153894

[1,1,0,1,0,1,-1,2,-2,4,-6,10,-16,27,-44,75,-127,
 218,-375,650,-1130,1974,-3460,6086,-10736,18993,
 -33685,59882,-106683,190446,-340611,610243,
 -1095102,1968200,-3542468,6384518,-11521308,
 20815942,-37651528,68176596,-123574852,224204708,
 -407153894]