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A288392 as a simple table

na(n)
01
1-1
2-9
3-19
4-9
5163
6573
71127
8109
9-7198
10-27159
11-58611
12-50378
13157532
14892986
152431694
164040909
171605559
18-16109148
19-68261139
20-167737209
21-263590908
22-109589779
23934422499
243976197701
259922490735
2616765911071
2713022553978
28-33008232762

[1,-1,-9,-19,-9,163,573,1127,109,-7198,-27159,
 -58611,-50378,157532,892986,2431694,4040909,
 1605559,-16109148,-68261139,-167737209,-263590908,
 -109589779,934422499,3976197701,9922490735,
 16765911071,13022553978,-33008232762]