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A292875 as a simple table

na(n)
11
2-3
314
4-81
5528
6-3708
727388
8-209739
91650204
10-13258230
11108311352
12-896946048
137512187398
14-63520243398
15541511083648
16-4649182740159
1740163784583752
18-348870785898510
193045109181792304
20-26694854975488554
21234936349043049246
22-2074958037081265050

[1,-3,14,-81,528,-3708,27388,-209739,1650204,
 -13258230,108311352,-896946048,7512187398,
 -63520243398,541511083648,-4649182740159,
 40163784583752,-348870785898510,3045109181792304,
 -26694854975488554,234936349043049246,
 -2074958037081265050]