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A124030 as a simple table

na(n)
11
21
3-1
40
5-2
61
70
8-3
94
10-1
113
12-14
1319
14-8
151
1648
17-173
18204
19-89
2016
21-1
221505
23-4866
245173
25-2082
26381
27-32
281
29108780
30-325990
31316978
32-113481
3318926
34-1580
3564
36-1
3719072536
38-53887686
3948428411
40-15201276
412206536
42-164222
436469
44-128
451
468332293760
47-22465873081
4818859204368
49-5176293234

[1,1,-1,0,-2,1,0,-3,4,-1,3,-14,19,-8,1,48,-173,
 204,-89,16,-1,1505,-4866,5173,-2082,381,-32,1,
 108780,-325990,316978,-113481,18926,-1580,64,-1,
 19072536,-53887686,48428411,-15201276,2206536,
 -164222,6469,-128,1,8332293760,-22465873081,
 18859204368,-5176293234]