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A009184 as a simple table

na(n)
01
1-1
22
3-3
44
53
6-32
7105
8-48
9-1081
105600
11-5643
12-85568
13547467
14-533504
15-12925983
1685827840
17-21466225
18-3149702656
1919155660141
2027282224128
21-1094661097965
225424499154944
2326420430767577
24-496815684169728
251642571602653527

[1,-1,2,-3,4,3,-32,105,-48,-1081,5600,-5643,
 -85568,547467,-533504,-12925983,85827840,
 -21466225,-3149702656,19155660141,27282224128,
 -1094661097965,5424499154944,26420430767577,
 -496815684169728,1642571602653527]