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A308846 as a simple table

na(n)
01
1-1
20
32
4-1
5-11
611
7125
8-181
9-2443
104534
1173116
12-164075
13-3106169
148150624
15177689590
16-533231545
17-13167063415
1844461467464
191226832808294
20-4603245727023
21-140381127928757
22579412786145335
2319352381237997941
24-87137414891475575
25-3163451350469601721
2615431005593881754746

[1,-1,0,2,-1,-11,11,125,-181,-2443,4534,73116,
 -164075,-3106169,8150624,177689590,-533231545,
 -13167063415,44461467464,1226832808294,
 -4603245727023,-140381127928757,579412786145335,
 19352381237997941,-87137414891475575,
 -3163451350469601721,15431005593881754746]