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A336209 as a simple table

na(n)
01
1-1
21
32
4-15
5-46
6880
75837
8-132783
9-2109238
1035966256
111440196097
12-8909037720
13-1504006716551
14-16097564749643
152021100230840147
1683130656159529937
17-2475528081920694566
18-331363460045748820376
19-3874344448291316066455
201255007424437046915956520

[1,-1,1,2,-15,-46,880,5837,-132783,-2109238,
 35966256,1440196097,-8909037720,-1504006716551,
 -16097564749643,2021100230840147,
 83130656159529937,-2475528081920694566,
 -331363460045748820376,-3874344448291316066455,
 1255007424437046915956520]