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A335986 as a simple table

na(n)
11
2-1
3-2
4-2
52
612
70
8-190
9-696
101960
1129592
1249750
13-1200226
14-8200478
1551479530
16992408898
17-517104450
18-133585331394
19-757952722052
2018448429372430
21284177581205280
22-2033645276651570
23-87779867499696610
24-122540992214640738
2526825921931152034414

[1,-1,-2,-2,2,12,0,-190,-696,1960,29592,49750,
 -1200226,-8200478,51479530,992408898,-517104450,
 -133585331394,-757952722052,18448429372430,
 284177581205280,-2033645276651570,
 -87779867499696610,-122540992214640738,
 26825921931152034414]