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A296043 as a simple table

na(n)
01
11
2-1
3-5
4-1
531
665
7-90
8-641
9-644
103329
1111386
12-1471
13-87021
14-164634
15317935
161881471
171418719
18-11370760
19-33937951
2017468929
21294971868
22468897758
23-1304743033
24-6275603903
25-2804572819
2642665919997
27109181454826
28-106020803386
29-1063546684834
30-1362993953395

[1,1,-1,-5,-1,31,65,-90,-641,-644,3329,11386,
 -1471,-87021,-164634,317935,1881471,1418719,
 -11370760,-33937951,17468929,294971868,468897758,
 -1304743033,-6275603903,-2804572819,42665919997,
 109181454826,-106020803386,-1063546684834,
 -1362993953395]