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A002428 as a simple table

na(n)
10
21
3-2
423
5-44
6563
7-3254
888069
9-11384
101593269
11-15518938
1231730711
13-186088972
143788707301
15-5776016314
16340028535787
17-667903294192
1810823198495797
19-5476065119726
20409741429887649
21-103505656241356
2217141894231615609

[0,1,-2,23,-44,563,-3254,88069,-11384,1593269,
 -15518938,31730711,-186088972,3788707301,
 -5776016314,340028535787,-667903294192,
 10823198495797,-5476065119726,409741429887649,
 -103505656241356,17141894231615609]