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A058316 as a simple table

na(n)
01
1-2
21
3-1
4-2
5-7
6-51
7-342
8-3165
9-34781
10-465842
11-7428379
12-139065247
13-3014260732
14-74720908617
15-2095541497991
16-65859561109214
17-2300344376478515

[1,-2,1,-1,-2,-7,-51,-342,-3165,-34781,-465842,
 -7428379,-139065247,-3014260732,-74720908617,
 -2095541497991,-65859561109214,-2300344376478515]