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A012120 as a simple table

n a(n)
0 1
1 1
2 1
3 49
4 1
5 83361
6 -2206335
7 961321425
8 -96313079295
9 41773143339585
10 -9493597481579775
11 4967941000109596785
12 -1991874953215606007295
13 1319075774798596975837665
14 -807077677117010238256087935 

[1,1,1,49,1,83361,-2206335,961321425,-96313079295,
 41773143339585,-9493597481579775,
 4967941000109596785,-1991874953215606007295,
 1319075774798596975837665,
 -807077677117010238256087935]

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Last modified December 4 14:29 EST 2023. Contains 367563 sequences. (Running on oeis4.)