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A320778 as a simple table

na(n)
01
11
20
31
40
52
6-3
74
8-4
94
10-9
1114
12-19
1330
14-42
1550
16-76
17128
18-194
19286
20-412
21598
22-909
231386
24-2100
253178
26-4763
277122
28-10758
2916414
30-25061
3138056
32-57643
3387568
34-133436
35203618
36-311128
37475536
38-726355
391109718
40-1697766
412601166
42-3987903
436114666

[1,1,0,1,0,2,-3,4,-4,4,-9,14,-19,30,-42,50,-76,
 128,-194,286,-412,598,-909,1386,-2100,3178,-4763,
 7122,-10758,16414,-25061,38056,-57643,87568,
 -133436,203618,-311128,475536,-726355,1109718,
 -1697766,2601166,-3987903,6114666]