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A182916 as a simple table

na(n)
01
11
2-31
3-139
49871
5324179
6-8225671
7-69685339
81674981058019
924279707153761
10-25107254122618741
11-1539511255447387949
12181685125700898353671
13368622611536873334281
14-538867967772767903436298889

[1,1,-31,-139,9871,324179,-8225671,-69685339,
 1674981058019,24279707153761,-25107254122618741,
 -1539511255447387949,181685125700898353671,
 368622611536873334281,
 -538867967772767903436298889]