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A140127 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 -3
7 5
8 25
9 621
10 385613
11 148697385121
12 22110912341822991798377
13 488892444587780299304228901641309659922062749
14 239015822375015830469277614767879892635108603674971498096787773471947363213442923403867269

[1,1,1,1,1,-3,5,25,621,385613,148697385121,
 22110912341822991798377,
 488892444587780299304228901641309659922062749,
 23901582237501583046927761476787989263510860367497\
 1498096787773471947363213442923403867269]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)