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A012097 as a simple table

n a(n)
0 1
1 1
2 1
3 49
4 -447
5 78561
6 -5655231
7 1014069393
8 -187639949439
9 51144433721793
10 -16631972691697791
11 6837287119716744945
12 -3357388632038371909695
13 1969419543279480607781025

[1,1,1,49,-447,78561,-5655231,1014069393,
 -187639949439,51144433721793,-16631972691697791,
 6837287119716744945,-3357388632038371909695,
 1969419543279480607781025]

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Last modified August 20 02:24 EDT 2022. Contains 356231 sequences. (Running on oeis4.)